Multispecific binding molecules having specificity to dystroglycan and laminin-2
11254737 · 2022-02-22
Assignee
Inventors
- Christian BEIL (Frankfurt am Main, DE)
- William H. Brondyk (Mansfield, MA, US)
- Yangde Chen (Wellesley, MA, US)
- Seng H. Cheng (Natick, MA)
- Timothy D. Connors (Shrewsbury, MA)
- Catherine Devaud (Malakoff, FR)
- Dietmar Hoffmann (Ashland, MA, US)
- Christian Lange (Frankfurt am Main, DE)
- Maureen Magnay (Westborough, MA, US)
- Tristan Magnay (Westborough, MA, US)
- Catherine Prades (Choisy le Roi, FR)
- Ercole Rao (Morfelden-Walldorf, DE)
- Leila Sevigny (Westborough, MA, US)
- Ronnie Wei (Needham, MA, US)
- Hongmei Zhao (Southborough, MA, US)
- Yunxiang Zhu (Wayland, MA)
Cpc classification
C12N15/11
CHEMISTRY; METALLURGY
C07K2317/66
CHEMISTRY; METALLURGY
C12N15/63
CHEMISTRY; METALLURGY
C07K2317/24
CHEMISTRY; METALLURGY
A61P21/00
HUMAN NECESSITIES
C07K16/28
CHEMISTRY; METALLURGY
C07K2317/34
CHEMISTRY; METALLURGY
C07K2317/92
CHEMISTRY; METALLURGY
International classification
C12N15/63
CHEMISTRY; METALLURGY
C07K16/28
CHEMISTRY; METALLURGY
C12N15/11
CHEMISTRY; METALLURGY
Abstract
Provided herein multispecific (e.g., bispecific) binding molecules comprising a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2. Further provided herein are methods for making such binding molecules and uses of such binding molecules for treating and/or preventing alpha-dystroglycanopathies.
Claims
1. An isolated nucleic acid molecule comprising a nucleotide sequence encoding a bispecific binding molecule comprising a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2, wherein the bispecific binding molecule is a bispecific binding protein comprising one or more polypeptide chains, and wherein the bispecific binding molecule comprises two light chains comprising a structure represented by the formula:
V.sub.L1-L.sub.5-V.sub.L2-L.sub.6-C.sub.L [III] and two heavy chains comprising a structure represented by the formula:
V.sub.H1-L.sub.7-V.sub.H2-L.sub.8-C.sub.H1-hinge-C.sub.H2-C.sub.H3 [IV] wherein: V.sub.L1 is a first immunoglobulin light chain variable domain; V.sub.L2 is a second immunoglobulin light chain variable domain; V.sub.H1 is a first immunoglobulin heavy chain variable domain; V.sub.H2 is a second immunoglobulin heavy chain variable domain; C.sub.L is an immunoglobulin light chain constant domain; C.sub.H1 is an immunoglobulin C.sub.H1 heavy chain constant domain; C.sub.H2 is an immunoglobulin C.sub.H2 heavy chain constant domain; C.sub.H3 is an immunoglobulin C.sub.H3 heavy chain constant domain; hinge is an immunoglobulin hinge region connecting the C.sub.H1 and C.sub.H2 domains; and L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are amino acid linkers; wherein the V.sub.H1 and V.sub.L1 domains form a V.sub.H1/V.sub.L1 binding pair, and wherein the V.sub.H2 and V.sub.L2 domains form a V.sub.H2/V.sub.L2 binding pair, and wherein (a) the V.sub.H1 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:9, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:18; the V.sub.L1 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:28, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:43; the V.sub.H2 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:52, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:57, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:62; and the V.sub.L2 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:67, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:72, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:77; or (b) the V.sub.H2 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:9, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:18; the V.sub.L2 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:28, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:43; the V.sub.H1 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:52, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:57, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:62; and the V.sub.L1 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:67, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:72, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:77.
2. The nucleic acid molecule of claim 1, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 50 amino acid residues in length.
3. The nucleic acid molecule of claim 1, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 25 amino acid residues in length.
4. The nucleic acid molecule of claim 1, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 14 amino acid residues in length.
5. The nucleic acid molecule of claim 1, wherein the L.sub.5 and L.sub.7 linkers comprise the amino acid sequence of GGGGSGGGGS (SEQ ID NO:294), and wherein the L.sub.6 and L.sub.8 linkers are each 0 amino acid residues in length.
6. The nucleic acid molecule of claim 1, wherein one or both of the variable domains of the polypeptides of formula III and formula IV are humanized or mouse variable domains.
7. The nucleic acid molecule of claim 1, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:170.
8. The nucleic acid molecule of claim 1, wherein the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:171.
9. The nucleic acid molecule of claim 1, wherein the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:192.
10. The nucleic acid molecule of claim 1, wherein the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:193.
11. The nucleic acid molecule of claim 1, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:170, the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:171, the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:192, and the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:193.
12. The nucleic acid molecule of claim 1, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:192.
13. The nucleic acid molecule of claim 1, wherein the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:193.
14. The nucleic acid molecule of claim 1, wherein the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:170.
15. The nucleic acid molecule of claim 1, wherein the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:171.
16. The nucleic acid molecule of claim 1, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:192, the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:193, the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:170, and the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:171.
17. An expression vector comprising the nucleic acid molecule of claim 1.
18. An isolated host cell comprising the expression vector of claim 17.
19. An isolated host cell comprising the nucleic acid molecule of claim 1.
20. A method of producing a bispecific binding molecule, the method comprising: a) culturing the host cell of claim 19 under conditions such that the host cell expresses the bispecific binding molecule; and b) isolating the bispecific binding molecule from the host cell.
21. A vector system comprising one or more vectors encoding two light chains and two heavy chains of a bispecific binding molecule comprising a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2, wherein the bispecific binding molecule is a bispecific binding protein comprising one or more polypeptide chains, and wherein the bispecific binding molecule comprises two light chains comprising a structure represented by the formula:
V.sub.L1-L.sub.5-V.sub.L2-L.sub.6-C.sub.L [III] and two heavy chains comprising a structure represented by the formula:
V.sub.H1-L.sub.7-V.sub.H2-L.sub.8-C.sub.H1-hinge-C.sub.H2-C.sub.H3 [IV] wherein: V.sub.L1 is a first immunoglobulin light chain variable domain; V.sub.L2 is a second immunoglobulin light chain variable domain; V.sub.H1 is a first immunoglobulin heavy chain variable domain; V.sub.H2 is a second immunoglobulin heavy chain variable domain; C.sub.L is an immunoglobulin light chain constant domain; C.sub.H1 is an immunoglobulin C.sub.H1 heavy chain constant domain; C.sub.H2 is an immunoglobulin C.sub.H2 heavy chain constant domain; C.sub.H3 is an immunoglobulin C.sub.H3 heavy chain constant domain; hinge is an immunoglobulin hinge region connecting the C.sub.H1 and C.sub.H2 domains; and L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are amino acid linkers; wherein the V.sub.H1 and V.sub.L1 domains form a V.sub.H1/V.sub.L1 binding pair, and wherein the V.sub.H2 and V.sub.L2 domains form a V.sub.H2/V.sub.L2 binding pair, and wherein (a) the V.sub.H1 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:9, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:18; the V.sub.L1 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:28, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:43; the V.sub.H2 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:52, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:57, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:62; and the V.sub.L2 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:67, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:72, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:77; or (b) the V.sub.H2 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:9, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:18; the V.sub.L2 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:28, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:43; the V.sub.H1 domain comprises a CDR-H1 comprising the amino acid sequence of SEQ ID NO:52, a CDR-H2 comprising the amino acid sequence of SEQ ID NO:57, and a CDR-H3 comprising the amino acid sequence of SEQ ID NO:62; and the V.sub.L1 domain comprises a CDR-L1 comprising the amino acid sequence of SEQ ID NO:67, a CDR-L2 comprising the amino acid sequence of SEQ ID NO:72, and a CDR-L3 comprising the amino acid sequence of SEQ ID NO:77.
22. The vector system of claim 21, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 50 amino acid residues in length.
23. The vector system of claim 21, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 25 amino acid residues in length.
24. The vector system of claim 21, wherein L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 14 amino acid residues in length.
25. The vector system of claim 21, wherein the L.sub.5 and L.sub.7 linkers comprise the amino acid sequence of GGGGSGGGGS (SEQ ID NO:294), and wherein the L.sub.6 and L.sub.8 linkers are each 0 amino acid residues in length.
26. The vector system of claim 21, wherein one or both of the variable domains of the polypeptides of formula III and formula IV are humanized or mouse variable domains.
27. The vector system of claim 21, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:170.
28. The vector system of claim 21, wherein the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:171.
29. The vector system of claim 21, wherein the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:192.
30. The vector system of claim 21, wherein the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:193.
31. The vector system of claim 21, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:170, the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:171, the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:192, and the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:193.
32. The vector system of claim 21, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:192.
33. The vector system of claim 21, wherein the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:193.
34. The vector system of claim 21, wherein the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:170.
35. The vector system of claim 21, wherein the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:171.
36. The vector system of claim 21, wherein the V.sub.H1 domain comprises the amino acid sequence of SEQ ID NO:192, the V.sub.L1 domain comprises the amino acid sequence of SEQ ID NO:193, the V.sub.H2 domain comprises the amino acid sequence of SEQ ID NO:170, and the V.sub.L2 domain comprises the amino acid sequence of SEQ ID NO:171.
37. An isolated host cell comprising the vector system of claim 21.
38. A method of producing a bispecific binding molecule, the method comprising: a) culturing the host cell of claim 37 under conditions such that the host cell expresses the bispecific binding molecule; and b) isolating the bispecific binding molecule from the host cell.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(40) The present disclosure provides multispecific and bispecific binding molecules comprising a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2. In some embodiments, the binding molecules are bispecific and comprise a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2. In some embodiments, the binding molecules are multispecific and comprise a first binding domain that binds an extracellular portion of dystroglycan, a second binding domain that binds laminin-2, and one or more additional binding domains that bind one or more additional targets. The present disclosure provides multiple configurations of multispecific/bispecific binding molecules that are able to bind dystroglycan and laminin-2 simultaneously and ameliorate the symptoms of alpha-dystroglycanopathy in an in vivo model system.
(41) The following description sets forth exemplary methods, parameters, and the like. It should be recognized, however, that such description is not intended as a limitation on the scope of the present disclosure but is instead provided as a description of exemplary embodiments.
(42) Definitions
(43) As utilized in accordance with the present disclosure, the following terms, unless otherwise indicated, shall be understood to have the following meanings. Unless otherwise required by context, singular terms shall include pluralities and plural terms shall include the singular.
(44) The term “antigen” or “target antigen” or “antigen target” as used herein refers to a molecule or a portion of a molecule that is capable of being bound by a binding protein, and additionally is capable of being used in an animal to produce antibodies capable of binding to an epitope of that antigen. A target antigen may have one or more epitopes. With respect to each target antigen recognized by a binding protein, the binding protein is capable of competing with an intact antibody that recognizes the target antigen. Exemplary target antigens described herein include dystroglycan (e.g., an extracellular portion thereof) and laminin-2.
(45) The term “epitope” includes any determinant, for example a polypeptide determinant, capable of specifically binding to an immunoglobulin or T-cell receptor. In certain embodiments, epitope determinants include chemically active surface groupings of molecules such as amino acids, sugar side chains, phosphoryl groups, or sulfonyl groups, and, in certain embodiments, may have specific three-dimensional structural characteristics and/or specific charge characteristics. An epitope is a region of an antigen that is bound by an antibody or binding protein. In certain embodiments, a binding protein is said to specifically bind an antigen when it preferentially recognizes its target antigen in a complex mixture of proteins and/or macromolecules. In some embodiments, a binding protein is said to specifically bind an antigen when the equilibrium dissociation constant is ≤10.sup.−6 M, for example when the equilibrium dissociation constant is ≤10.sup.−9M, and for example when the dissociation constant is ≤10.sup.−10 M.
(46) The dissociation constant (K.sub.D) of a binding protein can be determined, for example, by surface plasmon resonance. Generally, surface plasmon resonance analysis measures real-time binding interactions between ligand (a target antigen on a biosensor matrix) and analyte (a binding protein in solution) by surface plasmon resonance (SPR) using the BIAcore system (Pharmacia Biosensor; Piscataway, N.J.). Surface plasmon analysis can also be performed by immobilizing the analyte (binding protein on a biosensor matrix) and presenting the ligand (target antigen). The term “K.sub.D,” as used herein refers to the dissociation constant of the interaction between a particular binding protein and a target antigen.
(47) The term “specifically binds” as used herein refers to the ability of a binding protein or an antigen-binding fragment thereof to bind to an antigen containing an epitope with an K.sub.D of at least about 1×10.sup.−6 M, 1×10.sup.−7 M, 1×10.sup.−8M, 1×10.sup.−9M, 1×10.sup.−10 M, 1×10.sup.−11 M, 1×10.sup.−12 M, or more, and/or to bind to an epitope with an affinity that is at least two-fold greater than its affinity for a nonspecific antigen.
(48) The term “binding protein” as used herein refers to a non-naturally occurring (or recombinant or engineered) molecule that specifically binds to at least one target antigen.
(49) The term “monospecific binding protein” refers to a binding protein that specifically binds to one antigen target.
(50) The term “monovalent binding protein” refers to a binding protein that has one antigen binding site.
(51) The term “bispecific binding protein” refers to a binding protein that specifically binds to two different antigen targets. A bispecific or bifunctional antibody typically is an artificial hybrid antibody having two different heavy chain/light chain pairs and two different binding sites or epitopes. Bispecific antibodies may be produced by a variety of methods including, but not limited to, fusion of hybridomas or linking of F(ab′) fragments.
(52) The term “bivalent binding protein” refers to a binding protein that has two binding sites or domains.
(53) The term “polynucleotide” as used herein refers to single-stranded or double-stranded nucleic acid polymers of at least 10 nucleotides in length. In certain embodiments, the nucleotides comprising the polynucleotide can be ribonucleotides or deoxyribonucleotides or a modified form of either type of nucleotide. Such modifications include base modifications such as bromuridine, ribose modifications such as arabinoside and 2′,3′-dideoxyribose, and internucleotide linkage modifications such as phosphorothioate, phosphorodithioate, phosphoroselenoate, phosphorodiselenoate, phosphoroanilothioate, phoshoraniladate and phosphoroamidate. The term “polynucleotide” specifically includes single-stranded and double-stranded forms of DNA.
(54) An “isolated polynucleotide” is a polynucleotide of genomic, cDNA, or synthetic origin or some combination thereof, which: (1) is not associated with all or a portion of a polynucleotide in which the isolated polynucleotide is found in nature, (2) is linked to a polynucleotide to which it is not linked in nature, or (3) does not occur in nature as part of a larger sequence.
(55) An “isolated polypeptide” is one that: (1) is free of at least some other polypeptides with which it would normally be found, (2) is essentially free of other polypeptides from the same source, e.g., from the same species, (3) is expressed by a cell from a different species, (4) has been separated from at least about 50 percent of polynucleotides, lipids, carbohydrates, or other materials with which it is associated in nature, (5) is not associated (by covalent or noncovalent interaction) with portions of a polypeptide with which the “isolated polypeptide” is associated in nature, (6) is operably associated (by covalent or noncovalent interaction) with a polypeptide with which it is not associated in nature, or (7) does not occur in nature. Such an isolated polypeptide can be encoded by genomic DNA, cDNA, mRNA or other RNA, of synthetic origin, or any combination thereof. In some embodiments, the isolated polypeptide is substantially free from polypeptides or other contaminants that are found in its natural environment that would interfere with its use (therapeutic, diagnostic, prophylactic, research or otherwise).
(56) Naturally occurring antibodies typically comprise a tetramer. Each such tetramer is typically composed of two identical pairs of polypeptide chains, each pair having one full-length “light” chain (typically having a molecular weight of about 25 kDa) and one full-length “heavy” chain (typically having a molecular weight of about 50-70 kDa). The terms “heavy chain” and “light chain” as used herein refer to any immunoglobulin polypeptide having sufficient variable domain sequence to confer specificity for a target antigen. The amino-terminal portion of each light and heavy chain typically includes a variable domain of about 100 to 110 or more amino acids that typically is responsible for antigen recognition. The carboxy-terminal portion of each chain typically defines a constant domain responsible for effector function. Thus, in a naturally occurring antibody, a full-length heavy chain immunoglobulin polypeptide includes a variable domain (V.sub.H) and three constant domains (C.sub.H1, C.sub.H2, and C.sub.H3), wherein the V.sub.H domain is at the amino-terminus of the polypeptide and the C.sub.H3 domain is at the carboxyl-terminus, and a full-length light chain immunoglobulin polypeptide includes a variable domain (V.sub.L) and a constant domain (C.sub.L), wherein the V.sub.L domain is at the amino-terminus of the polypeptide and the C.sub.L domain is at the carboxyl-terminus.
(57) Human light chains are typically classified as kappa and lambda light chains, and human heavy chains are typically classified as mu, delta, gamma, alpha, or epsilon, and define the antibody's isotype as IgM, IgD, IgG, IgA, and IgE, respectively. IgG has several subclasses, including, but not limited to, IgG1, IgG2, IgG3, and IgG4. IgM has subclasses including, but not limited to, IgM1 and IgM2. IgA is similarly subdivided into subclasses including, but not limited to, IgA1 and IgA2. Within full-length light and heavy chains, the variable and constant domains typically are joined by a “J” region of about 12 or more amino acids, with the heavy chain also including a “D” region of about 10 more amino acids. See, e.g., F
(58) The term “CDR set” refers to a group of three CDRs that occur in a single variable region capable of binding the antigen. The exact boundaries of these CDRs have been defined differently according to different systems. The system described by Kabat (Kabat et al., S
(59) The term “Fc” as used herein refers to a molecule comprising the sequence of a non-antigen-binding fragment resulting from digestion of an antibody or produced by other means, whether in monomeric or multimeric form, and can contain the hinge region. In some embodiments, the original immunoglobulin source of the native Fc is of human origin and can be any of the immunoglobulins, for example IgG1 and IgG2. Fc molecules are made up of monomeric polypeptides that can be linked into dimeric or multimeric forms by covalent (i.e., disulfide bonds) and non-covalent association. The number of intermolecular disulfide bonds between monomeric subunits of native Fc molecules ranges from 1 to 4 depending on class (e.g., IgG, IgA, and IgE) or subclass (e.g., IgG1, IgG2, IgG3, IgA1, and IgGA2). One example of a Fc is a disulfide-bonded dimer resulting from papain digestion of an IgG. The term “Fc” as used herein is generic to the monomeric, dimeric, and multimeric forms.
(60) A F(ab) fragment typically includes one light chain and the V.sub.H and C.sub.H1 domains of one heavy chain, wherein the V.sub.H—C.sub.H1 heavy chain portion of the F(ab) fragment cannot form a disulfide bond with another heavy chain polypeptide. As used herein, a F(ab) fragment can also include one light chain containing two variable domains separated by an amino acid linker and one heavy chain containing two variable domains separated by an amino acid linker and a C.sub.H1 domain.
(61) A F(ab′) fragment typically includes one light chain and a portion of one heavy chain that contains more of the constant region (between the C.sub.H1 and C.sub.H2 domains), such that an interchain disulfide bond can be formed between two heavy chains to form a F(ab′).sub.2 molecule.
(62) A “recombinant” molecule is one that has been prepared, expressed, created, or isolated by recombinant means.
(63) One embodiment of the disclosure provides binding proteins having biological and immunological specificity to between one and three target antigens. Another embodiment of the disclosure provides nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins. Another embodiment of the disclosure provides expression vectors comprising nucleic acid molecules comprising nucleotide sequences encoding polypeptide chains that form such binding proteins. Yet another embodiment of the disclosure provides host cells that express such binding proteins (i.e., comprising nucleic acid molecules or vectors encoding polypeptide chains that form such binding proteins).
(64) The term “swapability” as used herein refers to the interchangeability of variable domains within the binding protein format and with retention of folding and ultimate binding affinity. “Full swapability” refers to the ability to swap the order of both V.sub.H1 and V.sub.H2 domains, and therefore the order of V.sub.L1 and V.sub.L2 domains, in the polypeptide chain of formula I or the polypeptide chain of formula II (i.e., to reverse the order) while maintaining full functionality of the binding protein as evidenced by the retention of binding affinity. Furthermore, it should be noted that the designations V.sub.H and V.sub.L refer only to the domain's location on a particular protein chain in the final format. For example, V.sub.H1 and V.sub.H2 could be derived from V.sub.L1 and V.sub.L2 domains in parent antibodies and placed into the V.sub.H1 and V.sub.H2 positions in the binding protein. Likewise, V.sub.L1 and V.sub.L2 could be derived from V.sub.H1 and V.sub.H2 domains in parent antibodies and placed in the V.sub.H1 and V.sub.H2 positions in the binding protein. Thus, the V.sub.H and V.sub.L designations refer to the present location and not the original location in a parent antibody. V.sub.H and V.sub.L domains are therefore “swappable.”
(65) An “isolated” binding molecule or protein is one that has been identified and separated and/or recovered from a component of its natural environment. Contaminant components of its natural environment are materials that would interfere with diagnostic or therapeutic uses for the binding protein, and may include enzymes, hormones, and other proteinaceous or non-proteinaceous solutes. In some embodiments, the binding molecule or protein will be purified: (1) to greater than 95% by weight of antibody as determined by the Lowry method, and in some embodiments more than 99% by weight, (2) to a degree sufficient to obtain at least 15 residues of N-terminal or internal amino acid sequence by use of a spinning cup sequenator, or (3) to homogeneity by SDS-PAGE under reducing or nonreducing conditions using Coomassie blue or silver stain. Isolated binding molecules or proteins include the molecules/proteins in situ within recombinant cells since at least one component of the natural environment will not be present.
(66) The terms “substantially pure” or “substantially purified” as used herein refer to a compound or species that is the predominant species present (i.e., on a molar basis it is more abundant than any other individual species in the composition). In some embodiments, a substantially purified fraction is a composition wherein the species comprises at least about 50% (on a molar basis) of all macromolecular species present. In other embodiments, a substantially pure composition will comprise more than about 80%, 85%, 90%, 95%, or 99% of all macromolar species present in the composition. In still other embodiments, the species is purified to essential homogeneity (contaminant species cannot be detected in the composition by conventional detection methods) wherein the composition consists essentially of a single macromolecular species.
(67) The term “vector” as used herein refers to any molecule (e.g., nucleic acid, plasmid, or virus) that is used to transfer coding information to a host cell. The term “vector” includes a nucleic acid molecule that is capable of transporting another nucleic acid to which it has been linked. One type of vector is a “plasmid,” which refers to a circular double-stranded DNA molecule into which additional DNA segments may be inserted. Another type of vector is a viral vector, wherein additional DNA segments may be inserted into the viral genome. Certain vectors are capable of autonomous replication in a host cell into which they are introduced (e.g., bacterial vectors having a bacterial origin of replication and episomal mammalian vectors). Other vectors (e.g., non-episomal mammalian vectors) can be integrated into the genome of a host cell upon introduction into the host cell and thereby are replicated along with the host genome. In addition, certain vectors are capable of directing the expression of genes to which they are operatively linked. Such vectors are referred to herein as “recombinant expression vectors” (or simply, “expression vectors”). In general, expression vectors of utility in recombinant DNA techniques are often in the form of plasmids. The terms “plasmid” and “vector” may be used interchangeably herein, as a plasmid is the most commonly used form of vector. However, the disclosure is intended to include other forms of expression vectors, such as viral vectors (e.g., replication defective retroviruses, adenoviruses, and adeno-associated viruses), which serve equivalent functions.
(68) The phrase “recombinant host cell” (or “host cell”) as used herein refers to a cell into which a recombinant expression vector has been introduced. A recombinant host cell or host cell is intended to refer not only to the particular subject cell, but also to the progeny of such a cell. Because certain modifications may occur in succeeding generations due to either mutation or environmental influences, such progeny may not, in fact, be identical to the parent cell, but such cells are still included within the scope of the term “host cell” as used herein. A wide variety of host cell expression systems can be used to express the binding proteins, including bacterial, yeast, baculoviral, and mammalian expression systems (as well as phage display expression systems). An example of a suitable bacterial expression vector is pUC19. To express a binding protein recombinantly, a host cell is transformed or transfected with one or more recombinant expression vectors carrying DNA fragments encoding the polypeptide chains of the binding protein such that the polypeptide chains are expressed in the host cell and secreted into the medium in which the host cells are cultured, from which medium the binding protein can be recovered.
(69) The term “transformation” as used herein refers to a change in a cell's genetic characteristics, and a cell has been transformed when it has been modified to contain a new DNA. For example, a cell is transformed where it is genetically modified from its native state. Following transformation, the transforming DNA may recombine with that of the cell by physically integrating into a chromosome of the cell, or may be maintained transiently as an episomal element without being replicated, or may replicate independently as a plasmid. A cell is considered to have been stably transformed when the DNA is replicated with the division of the cell. The term “transfection” as used herein refers to the uptake of foreign or exogenous DNA by a cell, and a cell has been “transfected” when the exogenous DNA has been introduced inside the cell membrane. A number of transfection techniques are well known in the art. Such techniques can be used to introduce one or more exogenous DNA molecules into suitable host cells.
(70) The term “naturally occurring” as used herein and applied to an object refers to the fact that the object can be found in nature and has not been manipulated by man. For example, a polynucleotide or polypeptide that is present in an organism (including viruses) that can be isolated from a source in nature and that has not been intentionally modified by man is naturally-occurring. Similarly, “non-naturally occurring” as used herein refers to an object that is not found in nature or that has been structurally modified or synthesized by man.
(71) As used herein, the twenty conventional amino acids and their abbreviations follow conventional usage. Stereoisomers (e.g., D-amino acids) of the twenty conventional amino acids; unnatural amino acids and analogs such as α-,α-disubstituted amino acids, N-alkyl amino acids, lactic acid, and other unconventional amino acids may also be suitable components for the polypeptide chains of the binding proteins. Examples of unconventional amino acids include: 4-hydroxyproline, γ-carboxyglutamate, ε-N,N,N-trimethyllysine, ε-N-acetyllysine, O-phosphoserine, N-acetylserine, N-formylmethionine, 3-methylhistidine, 5-hydroxylysine, σ-N-methylarginine, and other similar amino acids and imino acids (e.g., 4-hydroxyproline). In the polypeptide notation used herein, the left-hand direction is the amino terminal direction and the right-hand direction is the carboxyl-terminal direction, in accordance with standard usage and convention.
(72) Naturally occurring residues may be divided into classes based on common side chain properties: (1) hydrophobic: Met, Ala, Val, Leu, Ile, Phe, Trp, Tyr, Pro; (2) polar hydrophilic: Arg, Asn, Asp, Gln, Glu, His, Lys, Ser, Thr; (3) aliphatic: Ala, Gly, Ile, Leu, Val, Pro; (4) aliphatic hydrophobic: Ala, Ile, Leu, Val, Pro; (5) neutral hydrophilic: Cys, Ser, Thr, Asn, Gln; (6) acidic: Asp, Glu; (7) basic: His, Lys, Arg; (8) residues that influence chain orientation: Gly, Pro; (9) aromatic: His, Trp, Tyr, Phe; and (10) aromatic hydrophobic: Phe, Trp, Tyr.
(73) Conservative amino acid substitutions may involve exchange of a member of one of these classes with another member of the same class. Non-conservative substitutions may involve the exchange of a member of one of these classes for a member from another class.
(74) A skilled artisan will be able to determine suitable variants of the polypeptide chains of the binding proteins using well-known techniques. For example, one skilled in the art may identify suitable areas of a polypeptide chain that may be changed without destroying activity by targeting regions not believed to be important for activity. Alternatively, one skilled in the art can identify residues and portions of the molecules that are conserved among similar polypeptides. In addition, even areas that may be important for biological activity or for structure may be subject to conservative amino acid substitutions without destroying the biological activity or without adversely affecting the polypeptide structure.
(75) The term “patient” (the terms “individual” and “subject” can be used interchangeably herein) as used herein includes human and animal (e.g., mammals, including but not limited to dogs, cats, and other domestic pets; horses, cows, goats, rabbits, buffalos, and other livestock; and research animals such as non-human primates, mice, etc.) subjects.
(76) In some embodiments, the terms “treatment” or “treat” as used herein refer to therapeutic treatment, e.g., reducing or mitigating the severity or presence of one or more symptoms.
(77) In other embodiments, the term “prevent” as used herein can refer to prophylactic or preventative measures, e.g., preventing or delaying onset of one or more symptoms, for instance in an individual at risk for developing a pathological condition described herein.
(78) The terms “pharmaceutical composition” or “therapeutic composition” as used herein refer to a compound or composition capable of inducing a desired therapeutic effect when properly administered to a patient.
(79) The term “pharmaceutically acceptable carrier” or “physiologically acceptable carrier” as used herein refers to one or more formulation materials suitable for accomplishing or enhancing the delivery of a binding protein.
(80) The terms “effective amount” and “therapeutically effective amount” when used in reference to a pharmaceutical composition comprising one or more binding proteins refer to an amount or dosage sufficient to produce a desired therapeutic result. More specifically, a therapeutically effective amount is an amount of a binding protein sufficient to inhibit, for some period of time, one or more of the clinically defined pathological processes associated with the condition being treated. The effective amount may vary depending on the specific binding protein that is being used, and also depends on a variety of factors and conditions related to the patient being treated and the severity of the disorder. For example, if the binding protein is to be administered in vivo, factors such as the age, weight, and health of the patient as well as dose response curves and toxicity data obtained in preclinical animal work would be among those factors considered. The determination of an effective amount or therapeutically effective amount of a given pharmaceutical composition is well within the ability of those skilled in the art.
(81) One embodiment of the disclosure provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and a therapeutically effective amount of a binding molecule.
(82) Binding Molecules
(83) Certain aspects of the present disclosure relate to multispecific binding molecules comprising one or more binding domain(s) that bind an extracellular portion of dystroglycan and one or more binding domain(s) that bind laminin-2. In some embodiments, the multispecific binding molecule is a multispecific binding protein comprising one or more polypeptide chains. In some embodiments, the multispecific binding molecule is a bivalent or tetravalent bispecific binding molecule comprising two or four antigen binding sites. In some embodiments, the multispecific binding molecule is a trivalent multispecific binding molecule comprising three antigen binding sites. The terms “binding domain” and “binding site” are used interchangeably herein.
(84) Various formats and configurations for multispecific binding proteins are known in the art and suitable for use as described herein. Descriptions of exemplary and non-limiting formats are provided below. Any of the formats and optional features thereof described in International Publication No. WO2017/180913 may be used in the binding proteins (e.g., multispecific binding proteins) described herein.
(85) Multispecific, Trivalent Binding Proteins
(86) In some embodiments, the binding protein is a multispecific binding protein. In some embodiments, the multispecific binding protein is a trivalent binding protein comprising three antigen binding sites and collectively targeting two or more target antigens. In some embodiments, the binding protein (e.g., multispecific binding protein) comprises four polypeptide chains, wherein a first polypeptide chain comprises a structure represented by the formula:
V.sub.L2-L.sub.1-V.sub.L1-L.sub.2-C.sub.L [I]
and a second polypeptide chain comprises a structure represented by the formula:
V.sub.H1-L.sub.3-V.sub.H2-L.sub.4-C.sub.H1-hinge-C.sub.H2—C.sub.H3 [II]
and a third polypeptide chain comprises a structure represented by the formula:
V.sub.H3—C.sub.H1-hinge-C.sub.H2—C.sub.H3 [III]
and a fourth polypeptide chain comprises a structure represented by the formula:
V.sub.L3—C.sub.L [IV]
where:
(87) V.sub.L1 is a first immunoglobulin light chain variable domain;
(88) V.sub.L2 is a second immunoglobulin light chain variable domain;
(89) V.sub.L3 is a third immunoglobulin light chain variable domain;
(90) V.sub.H1 is a first immunoglobulin heavy chain variable domain;
(91) V.sub.H2 is a second immunoglobulin heavy chain variable domain;
(92) V.sub.H3 is a third immunoglobulin heavy chain variable domain;
(93) C.sub.L is an immunoglobulin light chain constant domain;
(94) C.sub.H1 is an immunoglobulin C.sub.H1 heavy chain constant domain;
(95) C.sub.H2 is an immunoglobulin C.sub.H2 heavy chain constant domain;
(96) C.sub.H3 is an immunoglobulin C.sub.H3 heavy chain constant domain;
(97) hinge is an immunoglobulin hinge region connecting the C.sub.H1 and C.sub.H2 domains; and
(98) L.sub.1, L.sub.2, L.sub.3 and L.sub.4 are amino acid linkers.
(99) In some embodiments, the polypeptide of formula I and the polypeptide of formula II form a cross-over light chain-heavy chain pair. In some embodiments, V.sub.H1 and V.sub.L1 form an antigen binding site, V.sub.H2 and V.sub.L2 form an antigen binding site, and V.sub.H3 and V.sub.L3 form an antigen binding site for a total of three antigen binding sites. In some embodiments, the three antigen binding sites comprise at least one antigen binding site that binds the extracellular portion of dystroglycan and at least one antigen binding site that binds laminin-2 (e.g., one antigen binding site that binds the extracellular portion of dystroglycan and two antigen binding sites that bind laminin-2, or two antigen binding sites that bind the extracellular portion of dystroglycan and one antigen binding site that binds laminin-2).
(100) In some embodiments, the two antigen binding sites that bind laminin-2 bind different epitopes of laminin-2. In some embodiments, the two antigen binding sites that bind laminin-2 bind the same or overlapping epitopes of laminin-2. In some embodiments, V.sub.H1 and V.sub.L1 form a first antigen binding site that binds laminin-2, V.sub.H2 and V.sub.L2 form a second antigen binding site that binds laminin-2, and V.sub.H3 and V.sub.L3 form a third antigen binding site that binds the extracellular portion of dystroglycan.
(101) In some embodiments, the two antigen binding sites that bind the extracellular portion of dystroglycan bind different epitopes of the extracellular portion of dystroglycan. In some embodiments, the two antigen binding sites that bind the extracellular portion of dystroglycan bind the same or overlapping epitopes of the extracellular portion of dystroglycan. In some embodiments, V.sub.H1 and V.sub.L1 form a first antigen binding site that binds the extracellular portion of dystroglycan, V.sub.H2 and V.sub.L2 form a second antigen binding site that binds the extracellular portion of dystroglycan, and V.sub.H3 and V.sub.L3 form a third antigen binding site that binds laminin-2.
(102) Any of the antigen binding sites described herein may find use in the binding proteins (e.g., multispecific binding proteins) described herein, e.g., including but not limited to, binding proteins comprising polypeptide(s) according to formulas I, II, III, and/or IV described supra.
(103) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises: a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of GFTFTDSV (SEQ ID NO:316), a CDR-H2 comprising the sequence of IYPGSGNF (SEQ ID NO:318), and a CDR-H3 comprising the sequence of AMRRSS (SEQ ID NO:320); and a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of QTIVHSNSKTY (SEQ ID NO:332), a CDR-L2 comprising the sequence of KVS (SEQ ID NO:334), and a CDR-L3 comprising the sequence of FQGSHVPLT (SEQ ID NO:336). In some embodiments, the VH and VL domains form an antigen binding site (e.g., V.sub.H1 and V.sub.L1, V.sub.H2 and V.sub.L2, or V.sub.H3 and V.sub.L3) that binds the extracellular portion of dystroglycan. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, or 6 CDR sequences of antibody AS30SS_Hu6 or AS30SS_Hu9 as shown in Table A2.
(104) In some embodiments, the VH and/or VL domain are humanized. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 314 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 346 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:362. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH and/or VL domain sequence of antibody AS30SS_Hu6 or AS30SS_Hu9 as shown in Table D2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:306 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:322. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:338 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:354.
(105) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises: a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of GFTFSSYT (SEQ ID NO:380), a CDR-H2 comprising the sequence of ISSSGSNT (SEQ ID NO:382), and a CDR-H3 comprising the sequence of ARFDYGSSLDS (SEQ ID NO:384); and a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of QSISNN (SEQ ID NO:396), a CDR-L2 comprising the sequence of YAS (SEQ ID NO:398), and a CDR-L3 comprising the sequence of QQSKSWPRT (SEQ ID NO:400). In some embodiments, the VH and VL domains form an antigen binding site (e.g., V.sub.H1 and V.sub.L1, V.sub.H2 and V.sub.L2, or V.sub.H3 and V.sub.L3) that binds laminin-2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, or 6 CDR sequences of antibody C3_Hu10 as shown in Table A2.
(106) In some embodiments, the VH and/or VL domain are humanized. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 378 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:394. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH and/or VL domain sequence of antibody C3_Hu10 as shown in Table D2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:370 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:386.
(107) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises: a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of GFTFSSYT (SEQ ID NO:380), a CDR-H2 comprising the sequence of ISSSGSNT (SEQ ID NO:382), and a CDR-H3 comprising the sequence of ARFDYGSSLDS (SEQ ID NO:384); and a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of QSIGNN (SEQ ID NO:428), a CDR-L2 comprising the sequence of YAS (SEQ ID NO:398), and a CDR-L3 comprising the sequence of QQSKSWPRT (SEQ ID NO:400). In some embodiments, the VH and VL domains form an antigen binding site (e.g., V.sub.H1 and V.sub.L1, V.sub.H2 and V.sub.L2, or V.sub.H3 and V.sub.L3) that binds laminin-2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, or 6 CDR sequences of antibody C3_Hu11 as shown in Table A2.
(108) In some embodiments, the VH and/or VL domain are humanized. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 410 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:426. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH and/or VL domain sequence of antibody C3_Hu11 as shown in Table D2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:402 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:418.
(109) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises: a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of GFTFSSYT (SEQ ID NO:444), a CDR-H2 comprising the sequence of ISSSGSNT (SEQ ID NO:446), and a CDR-H3 comprising the sequence of ARFDYGSSLDS (SEQ ID NO:448); and a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of QSISNY (SEQ ID NO:460), a CDR-L2 comprising the sequence of YAS (SEQ ID NO:462), and a CDR-L3 comprising the sequence of QQSKSWPRT (SEQ ID NO:464). In some embodiments, the VH and VL domains form an antigen binding site (e.g., V.sub.H1 and V.sub.L1, V.sub.H2 and V.sub.L2, or V.sub.H3 and V.sub.L3) that binds laminin-2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, or 6 CDR sequences of antibody C21_Hu11 as shown in Table A2.
(110) In some embodiments, the VH and/or VL domain are humanized. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 442 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:458. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH and/or VL domain sequence of antibody C21_Hu11 as shown in Table D2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:434 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:450.
(111) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises: a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of GFTFSSYT (SEQ ID NO:444), a CDR-H2 comprising the sequence of ISSSGDNT (SEQ ID NO:478), and a CDR-H3 comprising the sequence of ARFDYGSSLDS (SEQ ID NO:448); and a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of QSISNY (SEQ ID NO:460), a CDR-L2 comprising the sequence of YAS (SEQ ID NO:462), and a CDR-L3 comprising the sequence of QQSKSWPRT (SEQ ID NO:464). In some embodiments, the VH and VL domains form an antigen binding site (e.g., V.sub.H1 and V.sub.L1, V.sub.H2 and V.sub.L2, or V.sub.H3 and V.sub.L3) that binds laminin-2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, or 6 CDR sequences of antibody C21_Hu21 as shown in Table A2.
(112) In some embodiments, the VH and/or VL domain are humanized. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO: 474 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:490. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH and/or VL domain sequence of antibody C21_Hu21 as shown in Table D2. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a VH domain encoded by the polynucleotide sequence of SEQ ID NO:466 and/or a VL domain encoded by the polynucleotide sequence of SEQ ID NO:482.
(113) In some embodiments, V.sub.H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:396, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; V.sub.H2 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:396, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; and V.sub.H3 comprises a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320, and V.sub.L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, V.sub.H1 comprises the sequence of SEQ ID NO:378, and V.sub.L1 comprises the sequence of SEQ ID NO:394; V.sub.H2 comprises the sequence of SEQ ID NO:378, and V.sub.L2 comprises the sequence of SEQ ID NO:394; and V.sub.H3 comprises the sequence of SEQ ID NO:314, and V.sub.L3 comprises the sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a first polypeptide chain that comprises the sequence of SEQ ID NO:500, a second polypeptide chain that comprises the sequence of SEQ ID NO:498, a third polypeptide chain that comprises the sequence of SEQ ID NO:499, and a fourth polypeptide chain that comprises the sequence of SEQ ID NO:501. In some embodiments, the binding protein comprises 1, 2, 3, or 4 polypeptide chains of triAb 3407, e.g., as shown in Table I2 or I4.
(114) In some embodiments, V.sub.H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:396, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; V.sub.H2 comprises a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:446, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and V.sub.L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464; and V.sub.H3 comprises a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320, and V.sub.L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, V.sub.H1 comprises the sequence of SEQ ID NO:378, and V.sub.L1 comprises the sequence of SEQ ID NO:394; V.sub.H2 comprises the sequence of SEQ ID NO:442, and V.sub.L2 comprises the sequence of SEQ ID NO:458; and V.sub.H3 comprises the sequence of SEQ ID NO:314, and V.sub.L3 comprises the sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a first polypeptide chain that comprises the sequence of SEQ ID NO:504, a second polypeptide chain that comprises the sequence of SEQ ID NO:502, a third polypeptide chain that comprises the sequence of SEQ ID NO:503, and a fourth polypeptide chain that comprises the sequence of SEQ ID NO:505. In some embodiments, the binding protein comprises 1, 2, 3, or 4 polypeptide chains of triAb 3423, e.g., as shown in Table I2 or I4.
(115) In some embodiments, V.sub.H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:428, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; V.sub.H2 comprises a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:478, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and V.sub.L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464; and V.sub.H3 comprises a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320, and V.sub.L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, V.sub.H1 comprises the sequence of SEQ ID NO:410, and V.sub.L1 comprises the sequence of SEQ ID NO:426; V.sub.H2 comprises the sequence of SEQ ID NO:474, and V.sub.L2 comprises the sequence of SEQ ID NO:490; and V.sub.H3 comprises the sequence of SEQ ID NO:314, and V.sub.L3 comprises the sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a first polypeptide chain that comprises the sequence of SEQ ID NO:508, a second polypeptide chain that comprises the sequence of SEQ ID NO:506, a third polypeptide chain that comprises the sequence of SEQ ID NO:507, and a fourth polypeptide chain that comprises the sequence of SEQ ID NO:509. In some embodiments, the binding protein comprises 1, 2, 3, or 4 polypeptide chains of triAb 3429, e.g., as shown in Table I2 or I4.
(116) In some embodiments, V.sub.H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:446, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464; V.sub.H2 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO:428, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; and V.sub.H3 comprises a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320, and V.sub.L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, V.sub.H1 comprises the sequence of SEQ ID NO:442, and V.sub.L1 comprises the sequence of SEQ ID NO:458; V.sub.H2 comprises the sequence of SEQ ID NO:410, and V.sub.L2 comprises the sequence of SEQ ID NO:426; and V.sub.H3 comprises the sequence of SEQ ID NO:314, and V.sub.L3 comprises the sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a first polypeptide chain that comprises the sequence of SEQ ID NO:512, a second polypeptide chain that comprises the sequence of SEQ ID NO:510, a third polypeptide chain that comprises the sequence of SEQ ID NO:511, and a fourth polypeptide chain that comprises the sequence of SEQ ID NO:513. In some embodiments, the binding protein comprises 1, 2, 3, or 4 polypeptide chains of triAb 3437, e.g., as shown in Table I2 or I4.
(117) In some embodiments, V.sub.H1 comprises a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:478, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and V.sub.L1 comprises a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464; V.sub.H2 comprises a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and V.sub.L2 comprises a CDR-L1 comprising the sequence of SEQ ID NO:396, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400; and V.sub.H3 comprises a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320, and V.sub.L3 comprises a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, V.sub.H1 comprises the sequence of SEQ ID NO:474, and V.sub.L1 comprises the sequence of SEQ ID NO:490; V.sub.H2 comprises the sequence of SEQ ID NO:378, and V.sub.L2 comprises the sequence of SEQ ID NO:394; and V.sub.H3 comprises the sequence of SEQ ID NO:314, and V.sub.L3 comprises the sequence of SEQ ID NO:330. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a first polypeptide chain that comprises the sequence of SEQ ID NO:516, a second polypeptide chain that comprises the sequence of SEQ ID NO:514, a third polypeptide chain that comprises the sequence of SEQ ID NO:515, and a fourth polypeptide chain that comprises the sequence of SEQ ID NO:517. In some embodiments, the binding protein comprises 1, 2, 3, or 4 polypeptide chains of triAb 3439, e.g., as shown in Table I2 or I4.
(118) Bispecific Binding Proteins
(119) In some embodiments, the binding protein is a bispecific binding protein. In some embodiments, the bispecific binding protein is a bivalent binding protein comprising two antigen binding sites and collectively targeting two target antigens. In some embodiments, the bispecific binding protein is a tetravalent binding protein comprising four antigen binding sites and collectively targeting two target antigens.
(120) In some embodiments, the bispecific binding molecule comprises a first binding domain that binds to an extracellular portion of dystroglycan, wherein the first binding domain comprises a first immunoglobulin heavy chain variable domain (V.sub.H1) and a first immunoglobulin light chain variable domain (V.sub.L1), and a second binding domain that binds to laminin-2, wherein the second binding domain comprises a second immunoglobulin heavy chain variable domain (V.sub.H2) and a second immunoglobulin light chain variable domain (V.sub.L2). In some embodiments, the bispecific binding molecule is a bispecific binding protein, such as a bispecific antibody.
(121) In some embodiments, the bispecific binding molecule comprises four polypeptide chains that form four antigen binding sites, wherein two polypeptide chains comprise a structure represented by the formula:
V.sub.L1-L.sub.1-V.sub.L2-L.sub.2-C.sub.L [I]
and two polypeptide chains comprise a structure represented by the formula:
V.sub.H2-L.sub.3-V.sub.H1-L.sub.4-C.sub.H1-hinge-C.sub.H2—C.sub.H3 [II]
wherein: V.sub.L1 is a first immunoglobulin light chain variable domain; V.sub.L2 is a second immunoglobulin light chain variable domain; V.sub.H1 is a first immunoglobulin heavy chain variable domain; V.sub.H2 is a second immunoglobulin heavy chain variable domain; C.sub.L is an immunoglobulin light chain constant domain; C.sub.H1 is an immunoglobulin C.sub.H1 heavy chain constant domain; C.sub.H2 is an immunoglobulin C.sub.H2 heavy chain constant domain; C.sub.H3 is an immunoglobulin C.sub.H3 heavy chain constant domain; hinge is an immunoglobulin hinge region connecting the C.sub.H1 and C.sub.H2 domains; and L.sub.1, L.sub.2, L.sub.3, and L.sub.4 are amino acid linkers; wherein the V.sub.H1 and V.sub.L1 domains form a V.sub.H1/V.sub.L1 binding pair, and wherein the V.sub.H2 and V.sub.L2 domains form a V.sub.H2/V.sub.L2 binding pair.
(122) In some embodiments, formulae I and II describe the arrangement of domains within the respective polypeptide chains in order from N-terminus to C-terminus. In some embodiments, one or more of the polypeptide chains can comprise additional sequence(s), e.g., at the N-terminal or C-terminal ends.
(123) For exemplary descriptions of this format, see, e.g., International Pub. No. WO2012/135345, U.S. Pat. No. 9,221,917, and EP Pat. No. EP2691416B1.
(124) In some embodiments, the bispecific binding molecule comprises two polypeptide chains according to formula II comprising the sequence of SEQ ID NO:530 and two polypeptide chains according to formula I comprising the sequence of SEQ ID NO:531. In some embodiments, the bispecific binding molecule comprises two polypeptide chains according to formula II comprising the sequence of SEQ ID NO:532 and two polypeptide chains according to formula I comprising the sequence of SEQ ID NO:533. In some embodiments, the binding protein comprises two polypeptide chains shown for AS30_Hu9×C3_Hu11 CODV or AS30_Hu9×C21_Hu21 CODV in Table I3 or I4. In some embodiments, the binding protein comprises a variable domain comprising 1, 2, 3, 4, 5, or 6 CDR sequences shown in Table A2. In some embodiments, the binding protein comprises 1, 3, or 4 variable domains shown in Table D2 I3, or I4.
(125) In some embodiments, the V.sub.H1/V.sub.L1 binding pair binds the extracellular portion of dystroglycan, and the V.sub.H2/V.sub.L2 binding pair binds laminin-2. In other embodiments, the V.sub.H2/V.sub.L2 binding pair binds the extracellular portion of dystroglycan, and the V.sub.H1/V.sub.L1 binding pair binds laminin-2.
(126) In some embodiments of any of the multispecific and/or bispecific binding molecules described supra, the polypeptides of formula I and the polypeptides of formula II form a cross-over light chain-heavy chain pair. In some embodiments, the V.sub.H1 and V.sub.L1 domains cross-over to form the V.sub.H1/V.sub.L1 binding pair. In some embodiments, the V.sub.H2 and V.sub.L2 domains cross-over to form the V.sub.H2/V.sub.L2 binding pair. In some embodiments, the term linker as used herein in reference to the format above refers to one or more amino acid residues inserted between immunoglobulin domains to provide sufficient mobility for the domains of the light and heavy chains to fold into cross over dual variable region immunoglobulins. A linker is inserted at the transition between variable domains or between variable and constant domains, respectively, at the sequence level. The transition between domains can be identified because the approximate size of the immunoglobulin domains are well understood. The precise location of a domain transition can be determined by locating peptide stretches that do not form secondary structural elements such as beta-sheets or alpha-helices as demonstrated by experimental data or as can be assumed by techniques of modeling or secondary structure prediction. The linkers L.sub.1, L.sub.2, L.sub.3, and L.sub.4 are independent, but they may in some cases have the same sequence and/or length.
(127) In some embodiments, a linker of the present disclosure comprises the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.1 and L.sub.2 comprise the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.3 and L.sub.4 comprise the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.1, L.sub.2, L.sub.3, and L.sub.4 comprise the sequence DKTHT (SEQ ID NO: 534). Any of the linkers and linker combinations described in International Publication No. WO2017/180913 may be used in the binding proteins (e.g., multispecific binding proteins) described herein.
(128) In some embodiments, L.sub.1, L.sub.2, L.sub.3, and L.sub.4 are each 0 to 50 amino acid residues in length, 0 to 40 amino acid residues in length, 0 to 30 amino acid residues in length, 0 to 25 amino acid residues in length, 0 to 20 amino acid residues in length, 0 to 18 amino acid residues in length, 0 to 16 amino acid residues in length, or 0 to 14 amino acid residues in length. In some embodiments, the linkers L.sub.1, L.sub.2, L.sub.3, and L.sub.4 range from no amino acids (length=0) to about 100 amino acids long, or less than 100, 50, 40, 30, 20, or 15 amino acids or less. The linkers can also be 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 amino acids long. L.sub.1, L.sub.2, L.sub.3, and L.sub.4 in one binding protein may all have the same amino acid sequence or may all have different amino acid sequences.
(129) In certain embodiments, L.sub.1 is 5 amino acid residues in length, L.sub.2 is 5 amino acid residues in length, L.sub.3 is 5 amino acid residues in length, L.sub.4 is 5 amino acid residues in length. In certain embodiments, L.sub.1 is 14 amino acid residues in length, L.sub.2 is 2 amino acid residues in length, L.sub.3 is 14 amino acid residues in length, L.sub.4 is 2 amino acid residues in length. In some embodiments, L.sub.1 and L.sub.3 each comprise the sequence EPKSDKTHTSPPSP (SEQ ID NO:296), and/or L.sub.2 and L.sub.4 each comprise the sequence GG. In certain embodiments, L.sub.1 is 7 amino acid residues in length, L.sub.2 is 5 amino acid residues in length, L.sub.3 is 1 amino acid residue in length, and L.sub.4 is 2 amino acid residues in length. In some embodiments, L.sub.1 comprises the sequence GQPKAAP (SEQ ID NO:297), L.sub.2 comprises the sequence TKGPS (SEQ ID NO:298), L.sub.3 comprises a serine residue (e.g., the sequence S), and L.sub.4 comprises the sequence RT. In certain embodiments, L.sub.1 is 10 amino acid residues in length, L.sub.2 is 10 amino acid residues in length, L.sub.3 is 0 amino acid residues in length, and L.sub.4 is 0 amino acid residues in length. In some embodiments, L.sub.1 and L.sub.2 each comprise the sequence GGSGSSGSGG (SEQ ID NO:299).
(130) In some embodiments, one or both of the variable domains of the polypeptides of formula I and/or formula II are human, humanized, or mouse variable domains.
(131) In some embodiments, the bispecific binding molecule comprises two light chains comprising a structure represented by the formula:
V.sub.L1-L.sub.5-V.sub.L2-L.sub.6-C.sub.L [III]
and two heavy chains comprising a structure represented by the formula:
V.sub.H1-L.sub.7-V.sub.H2-L.sub.8-C.sub.H1-hinge-C.sub.H2—C.sub.H3 [IV]
wherein: V.sub.L1 is a first immunoglobulin light chain variable domain; V.sub.L2 is a second immunoglobulin light chain variable domain; V.sub.H1 is a first immunoglobulin heavy chain variable domain; V.sub.H2 is a second immunoglobulin heavy chain variable domain; C.sub.L is an immunoglobulin light chain constant domain; C.sub.H1 is an immunoglobulin C.sub.H1 heavy chain constant domain; C.sub.H2 is an immunoglobulin C.sub.H2 heavy chain constant domain; C.sub.H3 is an immunoglobulin C.sub.H3 heavy chain constant domain; hinge is an immunoglobulin hinge region connecting the C.sub.H1 and C.sub.H2 domains; and L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are amino acid linkers; wherein the V.sub.H1 and V.sub.L1 domains form a V.sub.H1/V.sub.L1 binding pair, and wherein the V.sub.H2 and V.sub.L2 domains form a V.sub.H2/V.sub.L2 binding pair.
(132) In some embodiments, formulae III and IV describe the arrangement of domains within the respective polypeptide chains in order from N-terminus to C-terminus. In some embodiments, one or more of the polypeptide chains can comprise additional sequence(s), e.g., at the N-terminal or C-terminal ends.
(133) For exemplary descriptions of this format, see, e.g., US PG Pub. No. US20130209469.
(134) In some embodiments, the bispecific binding molecule comprises two heavy chains comprising the sequence of SEQ ID NO:522 and two light chains comprising the sequence of SEQ ID NO:523. In some embodiments, the bispecific binding molecule comprises two heavy chains comprising the sequence of SEQ ID NO:528 and two light chains comprising the sequence of SEQ ID NO:529. In some embodiments, the binding protein comprises two polypeptide chains shown for AS30_Hu6×C3_Hu10 or AS30_Hu6×C21_Hu11 in Table I3 or I4. In some embodiments, the binding protein comprises a variable domain comprising 1, 2, 3, 4, 5, or 6 CDR sequences shown in Table A2. In some embodiments, the binding protein comprises 1, 2, 3, or 4 variable domains shown in Table D2, I3, or I4.
(135) In some embodiments, the V.sub.H1/V.sub.L1 binding pair binds the extracellular portion of dystroglycan, and the V.sub.H2/V.sub.L2 binding pair binds laminin-2. In other embodiments, the V.sub.H2/V.sub.L2 binding pair binds the extracellular portion of dystroglycan, and the V.sub.H1/V.sub.L1 binding pair binds laminin-2.
(136) In some embodiments, one or both of the variable domains of the polypeptides of formula III and/or formula IV are human, humanized, or mouse variable domains.
(137) Linkers
(138) In some embodiments, L.sub.5, L.sub.6, L.sub.7, and L.sub.8 are each 0 to 50 amino acid residues in length, 0 to 40 amino acid residues in length, 0 to 30 amino acid residues in length, 0 to 25 amino acid residues in length, 0 to 20 amino acid residues in length, 0 to 18 amino acid residues in length, 0 to 16 amino acid residues in length, or 0 to 14 amino acid residues in length. In some embodiments, the linkers L.sub.5, L.sub.6, L.sub.7, and L.sub.8 range from no amino acids (length=0) to about 100 amino acids long, or less than 100, 50, 40, 30, 20, or 15 amino acids or less. The linkers can also be 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 amino acids long. L.sub.5, L.sub.6, L.sub.7, and L.sub.8 in one binding protein may all have the same amino acid sequence or may all have different amino acid sequences.
(139) In some embodiments, a linker of the present disclosure comprises the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.1 and L.sub.2 comprise the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.3 and L.sub.4 comprise the sequence DKTHT (SEQ ID NO: 534). In some embodiments, L.sub.1, L.sub.2, L.sub.3, and L.sub.4 comprise the sequence DKTHT (SEQ ID NO: 534). Any of the linkers and linker combinations described in International Publication No. WO2017/180913 may be used in the binding proteins (e.g., multispecific binding proteins) described herein.
(140) In some embodiments, L.sub.1, L.sub.2, L.sub.3, and L.sub.4 are each 0 to 50 amino acid residues in length, 0 to 40 amino acid residues in length, 0 to 30 amino acid residues in length, 0 to 25 amino acid residues in length, 0 to 20 amino acid residues in length, 0 to 18 amino acid residues in length, 0 to 16 amino acid residues in length, or 0 to 14 amino acid residues in length. In some embodiments, the linkers L.sub.1, L.sub.2, L.sub.3, and L.sub.4 range from no amino acids (length=0) to about 100 amino acids long, or less than 100, 50, 40, 30, 20, or 15 amino acids or less. The linkers can also be 10, 9, 8, 7, 6, 5, 4, 3, 2, or 1 amino acids long. L.sub.1, L.sub.2, L.sub.3, and L.sub.4 in one binding protein may all have the same amino acid sequence or may all have different amino acid sequences.
(141) In certain embodiments, L.sub.1 is 5 amino acid residues in length, L.sub.2 is 5 amino acid residues in length, L.sub.3 is 5 amino acid residues in length, L.sub.4 is 5 amino acid residues in length. In certain embodiments, L.sub.1 is 14 amino acid residues in length, L.sub.2 is 2 amino acid residues in length, L.sub.3 is 14 amino acid residues in length, L.sub.4 is 2 amino acid residues in length. In some embodiments, L.sub.1 and L.sub.3 each comprise the sequence EPKSDKTHTSPPSP (SEQ ID NO:296), and/or L.sub.2 and L.sub.4 each comprise the sequence GG. In certain embodiments, L.sub.1 is 7 amino acid residues in length, L.sub.2 is 5 amino acid residues in length, L.sub.3 is 1 amino acid residue in length, and L.sub.4 is 2 amino acid residues in length. In some embodiments, L.sub.1 comprises the sequence GQPKAAP (SEQ ID NO:297), L.sub.2 comprises the sequence TKGPS (SEQ ID NO:298), L.sub.3 comprises a serine residue (e.g., the sequence S), and L.sub.4 comprises the sequence RT. In certain embodiments, L.sub.1 is 10 amino acid residues in length, L.sub.2 is 10 amino acid residues in length, L.sub.3 is 0 amino acid residues in length, and L.sub.4 is 0 amino acid residues in length. In some embodiments, L.sub.1 and L.sub.2 each comprise the sequence GGSGSSGSGG (SEQ ID NO:299).
(142) In certain embodiments, the L.sub.5 and L.sub.7 linkers comprise the amino acid sequence of GGGGSGGGGS (SEQ ID NO:294), and/or the L.sub.6 and L.sub.8 linkers are each 0 amino acid residues in length.
(143) The examples listed above (e.g., for L.sub.1, L.sub.2, L.sub.3, L.sub.4, L.sub.5, L.sub.6, L.sub.7, or L.sub.8) are not intended to limit the scope of the disclosure in any way, and linkers comprising randomly selected amino acids selected from the group consisting of valine, leucine, isoleucine, serine, threonine, lysine, arginine, histidine, aspartate, glutamate, asparagine, glutamine, glycine, and proline are suitable in the binding proteins.
(144) The identity and sequence of amino acid residues in the linker may vary depending on the type of secondary structural element necessary to achieve in the linker. For example, glycine, serine, and alanine are used for flexible linkers. Some combination of glycine, proline, threonine, and serine are useful if a more rigid and extended linker is necessary. Any amino acid residue may be considered as a linker in combination with other amino acid residues to construct larger peptide linkers as necessary depending on the desired properties.
(145) Constant/Fc Regions
(146) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a “knob” mutation on the second polypeptide chain and a “hole” mutation on the third polypeptide chain. In some embodiments, a binding protein of the present disclosure comprises a “knob” mutation on the third polypeptide chain and a “hole” mutation on the second polypeptide chain. In some embodiments, the “knob” mutation comprises substitution(s) at positions corresponding to positions 354 and/or 366 of human IgG1 or IgG4 according to EU Index. In some embodiments, the amino acid substitutions are S354C, T366W, T366Y, S354C and T366W, or S354C and T366Y. In some embodiments, the “knob” mutation comprises substitutions at positions corresponding to positions 354 and 366 of human IgG1 or IgG4 according to EU Index. In some embodiments, the amino acid substitutions are S354C and T366W. In some embodiments, the “hole” mutation comprises substitution(s) at positions corresponding to positions 407 and, optionally, 349, 366, and/or 368 and of human IgG1 or IgG4 according to EU Index. In some embodiments, the amino acid substitutions are Y407V or Y407T and optionally Y349C, T366S, and/or L368A. In some embodiments, the “hole” mutation comprises substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 or IgG4 according to EU Index. In some embodiments, the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
(147) In some embodiments, the C.sub.H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 or IgG4 according to EU Index (e.g., S354C and T366W); and the C.sub.H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 or IgG4 according to EU Index (e.g., Y349C, T366S, L368A, and Y407V). In some embodiments, the C.sub.H3 domain of the second polypeptide chain comprises amino acid substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 or IgG4 according to EU Index (e.g., Y349C, T366S, L368A, and Y407V); and the C.sub.H3 domain of the third polypeptide chain comprises amino acid substitutions at positions corresponding to positions 354 and 366 of human IgG1 or IgG4 according to EU Index (e.g., S354C and T366W).
(148) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises one or more mutations to improve purification, e.g., by modulating the affinity for a purification reagent. For example, it is known that heterodimeric binding proteins can be selectively purified away from their homodimeric forms if one of the two Fc regions of the heterodimeric form contains mutation(s) that reduce or eliminate binding to Protein A, because the heterodimeric form will have an intermediate affinity for Protein A-based purification than either homodimeric form and can be selectively eluted from Protein A, e.g., by use of a different pH (See e.g., Smith, E. J. et al. (2015) Sci. Rep. 5:17943). In some embodiments, the first and/or second Fc regions are human IgG1 Fc regions. In some embodiments, the first and/or second Fc regions are human IgG4 Fc regions. In some embodiments, the mutation comprises substitutions at positions corresponding to positions 435 and 436 of human IgG1 or IgG4 according to EU Index, wherein the amino acid substitutions are H435R and Y436F. In some embodiments, the C.sub.H3 domains of the second and the third polypeptide chains are human IgG1 or IgG4 C.sub.H3 domains, and only one of the C.sub.H3 domains comprises amino acid substitutions at positions corresponding to positions 435 and 436 of human IgG1 or IgG4 according to EU Index (e.g., H435R and Y436F). In some embodiments, a binding protein of the present disclosure comprises knob and hole mutations and one or more mutations to improve purification.
(149) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises one or more mutations to increase half-life, e.g., in vivo half-life. In some embodiments, a binding protein comprises one or more of the mutations described in U.S. Pat. No. 7,083,784. For example, in some embodiments, the C.sub.H2 domains of the second and the third polypeptide chains are human IgG1 or IgG4 C.sub.H2 domains comprising a tyrosine residue at position 252, a threonine residue at position 254, and a glutamic acid residue at position 256, numbering according to EU Index.
(150) In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises one or more mutations resulting in an Fc region with altered glycosylation and/or reduced effector function. In some embodiments, a binding protein comprises one or more of the mutations described in U.S. Pat. No. 9,790,268. For example, in some embodiments, the C.sub.H2 domains of the second and the third polypeptide chains are human IgG1 or IgG4 C.sub.H2 domains comprising an asparagine residue at position 297, an asparagine residue at position 298, an alanine residue at position 299, and a serine or threonine residue at position 300, numbering according to EU Index.
(151) Another bispecific binding protein platform contemplated for use herein is described in US PG Pub. No. US2013/0039913 and Labrijn, A. F. et al. (2013) Proc. Natl. Acad. Sci. 110:5145-5150. In this approach, each binding domain is produced in a homodimeric form, then assembled in vitro to form a heterodimeric bispecific binding protein. This approach employs specific mutations (e.g., in the antibody CH3 domain) to promote Fab-arm exchange, leading to heterodimeric binding proteins that are more stable than either homodimeric form. In some embodiments, these mutations occur, e.g., at positions 366, 368, 370, 399, 405, 407 and/or 409, according to the EU-index as described in Kabat et al. Specific mutations are described in greater detail in US PG Pub. No. US2013/0039913 and Labrijn, A. F. et al. (2013) Proc. Natl. Acad. Sci. 110:5145-5150.
(152) Additional bispecific binding protein platforms contemplated for use herein are described briefly below. One strategy was proposed by Carter et al. (Ridgway et al., 1996, Protein Eng. 9(7): 617-21; Carter, 2011, J. Immunol. Methods 248(1-2): 7-15) to produce a Fc heterodimer using a set of “knob-into-hole” mutations in the C.sub.H3 domain of Fc. These mutations lead to the alteration of residue packing complementarity between the C.sub.H3 domain interface within the structurally conserved hydrophobic core so that formation of the heterodimer is favored as compared with homodimers, which achieves good heterodimer expression from mammalian cell culture. Although the strategy led to higher heterodimer yield, the homodimers were not completely suppressed (Merchant et al., 1998, Nat. Biotechnol. 16(7): 677-81).
(153) To improve the yields of the binding proteins, in some embodiments, the C.sub.H3 domains can be altered by the “knob-into-holes” technology which is described in detail with several examples in, for example, International Publication No. WO 96/027011, Ridgway et al., 1996, Protein Eng. 9: 617-21; and Merchant et al., 1998, Nat. Biotechnol. 16: 677-81. Specifically, the interaction surfaces of the two C.sub.H3 domains are altered to increase the heterodimerisation of both heavy chains containing these two C.sub.H3 domains. Each of the two C.sub.H3 domains (of the two heavy chains) can be the “knob,” while the other is the “hole.” The introduction of a disulfide bridge further stabilizes the heterodimers (Merchant et al., 1998; Atwell et al., 1997, J. Mol. Biol. 270: 26-35) and increases the yield. In particular embodiments, the knob is on the CH3 domain of one polypeptide chain. In other embodiments, the knob is on the first pair of polypeptides having the cross-over orientation. In yet other embodiments, the C.sub.H3 domains do not include a knob in hole.
(154) In some embodiments, a binding protein of the present disclosure comprises a “knob” mutation on one polypeptide chain and a “hole” mutation on the other polypeptide chain. In some embodiments, the “knob” mutation comprises substitutions at positions corresponding to positions 354 and 366 of human IgG1 according to EU Index. In some embodiments, the amino acid substitutions are S354C and T366W. In some embodiments, the “hole” mutation comprises substitutions at positions corresponding to positions 349, 366, 368, and 407 of human IgG1 according to EU Index. In some embodiments, the amino acid substitutions are Y349C, T366S, L368A, and Y407V.
(155) In some embodiments, a binding protein of the present disclosure comprises one or more mutations to improve serum half-life (See e.g., Hinton, P. R. et al. (2006) J. Immunol. 176(1):346-56). In some embodiments, the mutation comprises substitutions at positions corresponding to positions 428 and 434 of human IgG1 according to EU Index, wherein the amino acid substitutions are M428L and N434S. In some embodiments, a binding protein of the present disclosure comprises knob and hole mutations and one or more mutations to improve serum half-life.
(156) Another bispecific binding protein platform contemplated for use herein is the heterodimeric, bivalent antibody Fc-containing format described in WO2011131746. Any of the antigen binding sites described herein may be combined in this heterodimeric, bispecific format. In some embodiments, a multispecific (e.g., bispecific) binding protein of the present disclosure comprises a first antibody heavy chain comprising a first heavy chain variable (VH) domain and a first Fc region of an immunoglobulin comprising a first C.sub.H3 region, and a first antibody light chain comprising a first light chain variable (VL) domain, wherein the first VH and VL domains form a first antigen binding domain that binds an extracellular portion of dystroglycan, and a second antibody heavy chain comprising a second heavy chain variable (VH) domain and a second Fc region of an immunoglobulin comprising a second C.sub.H3 region, and a second antibody light chain comprising a second light chain variable (VL) domain, wherein the second VH and VL domains form a second antigen binding domain that binds laminin-2. In some embodiments, the sequences of said first and second C.sub.H3 regions are different and are such that the heterodimeric interaction between said first and second C.sub.H3 regions is stronger than each of the homodimeric interactions of said first and second C.sub.H3 regions. In some embodiments, the first homodimeric protein has an amino acid other than Lys, Leu or Met at position 409 and the second homodimeric protein has an amino-acid substitution at a position selected from: 366, 368, 370, 399, 405 and 407, and/or the sequences of said first and second C.sub.H3 regions are such that the dissociation constants of homodimeric interactions of each of the C.sub.H3 regions are between 0.01 and 10 micromolar. In some embodiments, the first antibody heavy chain comprises the sequence of SEQ ID NO:518, the second antibody heavy chain comprises the sequence of SEQ ID NO:519, the first antibody light chain comprises the sequence of SEQ ID NO:520, and the second antibody light chain comprises the sequence of SEQ ID NO:521. In some embodiments, the binding protein comprises two antibody light chains and two antibody heavy chains shown for AS30_Hu6×C3_Hu10 duobody in Table I3.
(157) Another bispecific binding protein platform contemplated for use herein is the “DuetMab” design (Mazor, Y. et al. (2015) MAbs 7:377-389). Briefly, the “knob-into-hole” approach described above is combined with replacing a native disulfide bond in one of the CH1-CL interfaces with an engineered disulfide bond to increase the efficiency of cognate heavy and light chain pairing. In some embodiments, the heavy chain of one binding domain bears an F126C mutation, and the cognate light chain for that binding domain bears an S121C mutation, numbering according to Kabat. For example, in some embodiments, a multispecific (e.g., bispecific) binding protein of the present disclosure comprises a first antibody heavy chain comprising the sequence of SEQ ID NO:524, a second antibody heavy chain comprising the sequence of SEQ ID NO:525, a first antibody light chain comprising the sequence of SEQ ID NO:526, and a second antibody light chain comprising the sequence of SEQ ID NO:527. In some embodiments, the binding protein comprises two antibody light chains and two antibody heavy chains shown for AS30_Hu6×C21_Hu11 duetmab in Table I3.
(158) Gunasekaran et al. explored the feasibility of retaining the hydrophobic core integrity while driving the formation of Fc heterodimer by changing the charge complementarity at the C.sub.H3 domain interface (Gunasekaran et al., 2010, J. Biol. Chem. 285(25): 19637-46). Taking advantage of the electrostatic steering mechanism, these constructs showed efficient promotion of Fc heterodimer formation with minimum contamination of homodimers through mutation of two pairs of peripherally located charged residues. In contrast to the knob-into-hole design, the homodimers were evenly suppressed due to the nature of the electrostatic repulsive mechanism, but not totally avoided.
(159) Davis et al. describe an antibody engineering approach to convert Fc homodimers into heterodimers by interdigitating β-strand segments of human IgG and IgA C.sub.H3 domains, without the introduction of extra interchain disulfide bonds (Davis et al., 2010, Protein Eng. Des. Sel. 23(4): 195-202). Expression of SEEDbody (Sb) fusion proteins by mammalian cells yields Sb heterodimers in high yield that are readily purified to eliminate minor by-products.
(160) U.S. Patent Application Publication No. US 2010/331527 A1 describes a bispecific antibody based on heterodimerization of the C.sub.H3 domain, introducing in one heavy chain the mutations H95R and Y96F within the C.sub.H3 domain. These amino acid substitutions originate from the C.sub.H3 domain of the IgG3 subtype and will heterodimerize with an IgG1 backbone. A common light chain prone to pair with every heavy chain is a prerequisite for all formats based on heterodimerization through the C.sub.H3 domain. A total of three types of antibodies are therefore produced: 50% having a pure IgG1 backbone, one-third having a pure H95R and Y96F mutated backbone, and one-third having two different heavy chains (bispecific). The desired heterodimer can be purified from this mixture because its binding properties to Protein A are different from those of the parental antibodies: IgG3-derived C.sub.H3 domains do not bind to Protein A, whereas the IgG1 does. Consequently, the heterodimer binds to Protein A, but elutes at a higher pH than the pure IgG1 homodimer, and this makes selective purification of the bispecific heterodimer possible.
(161) U.S. Pat. No. 7,612,181 describes a Dual-Variable-Domain IgG (DVD-IgG) bispecific antibody that is based on the Dual-Fv format described in U.S. Pat. No. 5,989,830. A similar bispecific format was also described in U.S. Patent. Application Publication No. US 2010/0226923 A1. The addition of constant domains to respective chains of the Dual-Fv (C.sub.H1-Fc to the heavy chain and kappa or lambda constant domain to the light chain) led to functional bispecific antibodies without any need for additional modifications (i.e., obvious addition of constant domains to enhance stability). Some of the antibodies expressed in the DVD-Ig/TBTI format show a position effect on the second (or innermost) antigen binding position (Fv2). Depending on the sequence and the nature of the antigen recognized by the Fv2 position, this antibody domain displays a reduced affinity to its antigen (i.e, loss of on-rate in comparison to the parental antibody). One possible explanation for this observation is that the linker between V.sub.L1 and V.sub.L2 protrudes into the CDR region of Fv2, making the Fv2 somewhat inaccessible for larger antigens.
(162) The second configuration of a bispecific antibody fragment described in U.S. Pat. No. 5,989,830 is the cross-over double head (CODH), having the following orientation of variable domains expressed on two chains: V.sub.L1-linker-V.sub.L2 for the light chain, and V.sub.H2-linker-V.sub.H1 for the heavy chain.
CDR, VH, and VL Domain Sequences
(163) Described infra are exemplary CDR, VH domain, and VL domain sequences that may be used in any of the multispecific or bispecific binding proteins of the present disclosure in any number, combination, or configuration.
(164) In some embodiments of any of the formats described herein, a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds laminin-2.
(165) In some embodiments, the V.sub.H1 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:1-8, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:9-17, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:18-27; and/or wherein the V.sub.L1 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:28-37, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38-42, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:43-50. In some embodiments of any of the formats described herein, the V.sub.H1 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:170, 172, 174, 176, 178, 180, 182, 184, 186, and 188. In some embodiments, the V.sub.L1 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:171, 173, 175, 177, 179, 181, 183, 185, 187, and 189. In some embodiments, the V.sub.H1 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:230, 232, 234, 236, 238, 240, 242, 244, 246, and 248. In some embodiments, the V.sub.L1 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:231, 233, 235, 237, 239, 241, 243, 245, 247, and 249.
(166) In some embodiments of any of the formats described herein, a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds laminin-2 (e.g., a laminin G-like (LG) domain 5, or LG-5). In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:51-55, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:56-60, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:61-65; and/or wherein the V.sub.L2 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:66-70, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs: 71-75, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:76-80. In some embodiments, the V.sub.H2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:190, 192, 194, 196, and 198. In some embodiments, the V.sub.L2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs: 191, 193, 195, 197, and 199. In some embodiments, the V.sub.H2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:250, 252, 254, 256, and 258. In some embodiments, the V.sub.L2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:251, 253, 255, 257, and 259.
(167) In some embodiments of any of the formats described herein, a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds laminin-2 (e.g., laminin G-like (LG) 4 and/or 5 domains, or LG-4/5). In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:81-95, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:96-110, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:111-125; and/or wherein the V.sub.L2 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:126-140, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38 and 141-154, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:155-169. In some embodiments, the V.sub.H2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, and 228. In some embodiments, the V.sub.L2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, and 229. In some embodiments, the V.sub.H2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:260, 262, 264, 266, 268, 270, 272, 274, 276, 278, 280, 282, 284, 286, and 288. In some embodiments, the V.sub.L2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:261, 263, 265, 267, 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, and 289.
(168) In some embodiments of any of the formats described herein, a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds laminin-2. In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:1-8, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:9-17, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:18-27; and/or wherein the V.sub.L2 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:28-37, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38-42, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:43-50. In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:170, 172, 174, 176, 178, 180, 182, 184, 186, and 188. In some embodiments, the V.sub.L2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:171, 173, 175, 177, 179, 181, 183, 185, 187, and 189. In some embodiments, the V.sub.H2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:230, 232, 234, 236, 238, 240, 242, 244, 246, and 248. In some embodiments, the V.sub.L2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:231, 233, 235, 237, 239, 241, 243, 245, 247, and 249.
(169) In some embodiments of any of the formats described herein, a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds laminin-2 (e.g., a laminin G-like (LG) domain 5, or LG-5). In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:51-55, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:56-60, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:61-65; and/or wherein the V.sub.L2 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:66-70, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs: 71-75, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:76-80. In some embodiments, the V.sub.H2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:190, 192, 194, 196, and 198. In some embodiments, the V.sub.L2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs: 191, 193, 195, 197, and 199. In some embodiments, the V.sub.H2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:250, 252, 254, 256, and 258. In some embodiments, the V.sub.L2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:251, 253, 255, 257, and 259.
(170) In some embodiments of any of the formats described herein, a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds laminin-2 (e.g., laminin G-like (LG) 4 and/or 5 domains, or LG-4/5). In some embodiments of any of the formats described herein, the V.sub.H2 domain comprises a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:81-95, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:96-110, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:111-125; and/or wherein the V.sub.L2 domain comprises a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:126-140, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38 and 141-154, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:155-169. In some embodiments, the V.sub.H2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, and 228. In some embodiments, the V.sub.L2 domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, and 229. In some embodiments, the V.sub.H2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:260, 262, 264, 266, 268, 270, 272, 274, 276, 278, 280, 282, 284, 286, and 288. In some embodiments, the V.sub.L2 domain is encoded by a nucleic acid sequence selected from the group consisting of SEQ ID NOs:261, 263, 265, 267, 269, 271, 273, 275, 277, 279, 281, 283, 285, 287, and 289.
(171) Exemplary CDR sequences suitable for use in the binding proteins of the present disclosure are provided in Tables A-C below. Exemplary VH and VL sequences (polypeptide and nucleic acid) suitable for use in the binding proteins of the present disclosure are provided in Tables D-I below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds an extracellular portion of dystroglycan, wherein the binding domain comprises a VH domain comprising at least 1, at least 2, at least 3, at least 4, at least 5, or 6 CDR sequences of an antibody shown in Table A below and/or a VL domain comprising at least 1, at least 2, at least 3, at least 4, at least 5, or 6 CDR sequences of an antibody shown in Table A below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds laminin-2, wherein the binding domain comprises a VH domain comprising at least 1, at least 2, at least 3, at least 4, at least 5, or 6 CDR sequences of an antibody shown in Table B or Table C below and/or a VL domain comprising at least 1, at least 2, at least 3, at least 4, at least 5, or 6 CDR sequences of an antibody shown in Table B or Table C below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds an extracellular portion of dystroglycan, wherein the binding domain comprises a VH domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VH sequence shown in Table D below and/or a VL domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VL sequence shown in Table D below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds laminin-2, wherein the binding domain comprises a VH domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VH sequence shown in Table E or Table F below and/or a VL domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VL sequence shown in Table E or Table F below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds an extracellular portion of dystroglycan, wherein the binding domain comprises a VH domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VH sequence encoded by a polynucleotide sequence shown in Table G below and/or a VL domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VL sequence encoded by a polynucleotide sequence shown in Table G below. In some embodiments, a bispecific binding protein of the present disclosure comprises a binding domain that binds laminin-2, wherein the binding domain comprises a VH domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VH sequence encoded by a polynucleotide sequence shown in Table H or Table I below and/or a VL domain comprising a sequence that is at least 90%, at least 91%, at least 92%, at least 93%, at least 94%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99%, or 100% identical to a VL sequence encoded by a polynucleotide sequence shown in Table H or Table I below.
(172) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:9, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:18; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:28, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:43. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:170 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:171. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:230 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:231.
(173) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:1, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:10, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:19; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:29, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:43. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:172 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:173. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:232 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:233.
(174) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:2, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:11, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:20; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:30, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:39, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:44. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:174 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:175. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:234 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:235.
(175) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:3, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:12, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:21; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:31, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:40, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:45. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:176 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:177. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:236 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:237.
(176) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:4, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:13, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:22; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:32, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:41, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:46. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:178 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:179. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:238 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:239.
(177) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:4, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:13, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:23; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:33, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:41, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:46. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:180 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:181. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:240 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:241.
(178) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:5, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:14, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:24; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:34, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:42, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:47. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:182 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:183. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:242 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:243.
(179) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:6, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:15, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:25; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:35, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:40, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:48. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:184 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:185. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:244 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:245.
(180) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:7, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:16, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:26; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:36, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:40, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:49. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:186 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:187. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:246 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:247.
(181) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:8, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:17, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:27; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:37, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:40, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:50. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:188 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:189. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:248 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:249.
(182) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:51, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:56, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:61; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:66, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:71, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:76. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:190 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:191. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:250 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:251.
(183) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:52, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:57, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:62; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:67, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:72, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:77. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:192 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:193. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:252 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:253.
(184) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:53, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:58, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:63; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:68, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:73, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:78. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:194 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:195. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:254 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:255.
(185) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:54, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:59, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:64; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:69, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:74, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:79. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:196 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:197. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:256 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:257.
(186) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:55, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:60, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:65; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:70, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:75, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:80. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:198 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:199. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:258 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:259.
(187) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:81, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:96, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:111; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:126, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:141, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:155. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:200 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:201. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:260 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:261.
(188) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:82, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:97, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:112; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:127, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:142, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:156. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:202 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:203. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:262 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:263.
(189) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:83, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:98, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:113; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:128, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:143, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:157. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:204 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:205. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:264 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:265.
(190) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:84, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:99, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:114; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:129, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:144, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:158. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:206 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:207. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:266 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:267.
(191) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:85, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:100, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:115; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:130, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:145, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:159. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:208 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:209. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:268 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:269.
(192) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:86, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:101, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:116; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:131, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:146, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:160. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:210 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:211. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:270 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:271.
(193) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:87, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:102, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:117; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:132, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:147, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:161. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:212 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:213. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:272 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:273.
(194) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:88, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:103, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:118; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:133, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:148, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:162. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:214 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:215. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:274 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:275.
(195) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:89, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:104, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:119; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:134, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:149, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:163. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:216 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:217. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:276 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:277.
(196) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:90, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:105, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:120; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:135, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:150, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:164. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:218 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:219. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:278 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:279.
(197) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:91, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:106, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:121; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:136, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:151, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:165. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:220 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:221. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:280 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:281.
(198) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:92, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:107, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:122; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:137, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:152, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:166. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:222 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:223. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:282 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:283.
(199) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:93, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:108, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:123; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:138, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:153, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:167. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:224 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:225. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:284 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:285.
(200) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:94, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:109, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:124; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:139, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:38, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:168. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:226 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:227. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:286 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:287.
(201) In some embodiments, a bispecific binding protein of the present disclosure comprises (a) a VH domain comprising (i) CDR-H1 comprising the amino acid sequence of SEQ ID NO:95, (ii) CDR-H2 comprising the amino acid sequence of SEQ ID NO:110, and (iii) CDR-H3 comprising the amino acid sequence of SEQ ID NO:125; and/or (b) a VL domain comprising (i) CDR-L1 comprising the amino acid sequence of SEQ ID NO:140, (ii) CDR-L2 comprising the amino acid sequence of SEQ ID NO:154, and (iii) CDR-L3 comprising the amino acid sequence of SEQ ID NO:169. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:228 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to the amino acid sequence of SEQ ID NO:229. In some embodiments, a bispecific binding protein of the present disclosure comprises a VH domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VH domain sequence encoded by the polynucleotide sequence of SEQ ID NO:288 and/or a VL domain sequence having at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 100% sequence identity to a VL domain sequence encoded by the polynucleotide sequence of SEQ ID NO:289.
(202) It will be appreciated by one of skill in the art that the CDRs and/or VH/VL domains of any of the anti-dystroglycan antibodies described herein may be combined in a bispecific binding protein with the CDRs and/or VH/VL domains of any of the anti-laminin-2 antibodies (e.g., antibodies that bind the LG-4/5 and/or LG-5 domains of laminin-2) described herein in any combination or configuration (e.g., having a V.sub.H1/V.sub.L1 binding pair specific for the extracellular domain of dystroglycan and a V.sub.H2/V.sub.L2 binding pair specific for laminin-2, or having a V.sub.H2/V.sub.L2 binding pair specific for the extracellular domain of dystroglycan and a V.sub.H1/V.sub.L1 binding pair specific for laminin-2).
(203) It will be appreciated by one of skill in the art that the CDRs and/or VH/VL domains of any of the anti-dystroglycan antibodies described herein may be combined in a multispecific binding protein with the CDRs and/or VH/VL domains of any of the anti-laminin-2 antibodies (e.g., antibodies that bind the LG-4/5 and/or LG-5 domains of laminin-2) described herein in any combination or configuration. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, 4, 5, 6, or more CDRs shown in Table A2 or from a variable domain or polypeptide sequence shown in Tables D2, I2, I3, or I4. In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises a 1, 2, 3, 4, 5, or 6 variable domain sequences shown in Tables D2, I2, I3, or I4, or a 1, 2, 3, 4, 5, or 6 variable domain sequences encoded by a polynucleotide shown in Table G2 (e.g., 1, 2, or 3 VH/VL binding pairs, each comprising a VH and VL domain). In some embodiments, a binding protein (e.g., multispecific binding protein) of the present disclosure comprises 1, 2, 3, or 4 variable domain framework sequences shown in Table I4.
(204) TABLE-US-00001 TABLE A CDR sequences of anti-beta-DG VH and VL regions. Variable Heavy Chain (VH) Variable Light Chain (VL) SEQ SEQ SEQ SEQ SEQ SEQ ID ID ID ID ID ID bDG CDR 1 NO CDR 2 NO CDR 3 NO CDR 1 NO CDR 2 NO CDR 3 NO AS19 GFTFTDSV 1 IYPGSGSI 9 AMRRSY 18 QSIVHS 28 KVS 38 FQGSHVPLT 43 NGNTY AS30 GFTFTDSV 1 IYPGSGNF 10 AMRRSS 19 QTIVHS 29 KVS 38 FQGSHVPLT 43 S/S NSKTY B04 GFTFSSYA 2 ISGSGGST 11 ARLGYCSST 20 QSISSW 30 DAS 39 QQYNSYPLT 44 SCYLSAFDI B06 GYSFSNYW 3 IYPGDSDT 12 ARGVIING 21 QSVSSN 31 GAS 40 QHYNNLPLT 45 TTSGFDY C107 GFNIKDTY 4 IDPANGNT 13 GRSGG 22 QSLLDSG 32 WAS 41 QQYYTYPWT 46 NYVGY NQKNY D87/ GFNIKDTY 4 IDPANGNT 13 GRSRG 23 QSLLYSS 33 WAS 41 QQYYTYPWT 46 D39/ NYFDY NQKNY D173 TDG-2 GYTFTTYY 5 INPSAGNT 14 ARELDI 24 QDIRND 34 AAS 42 LQDFNFPFT 47 TDI-11 GFTFSSYG 6 IWYDGSNK 15 AREGMVR 25 QSVSSSY 35 GAS 40 QQDYNLPYT 48 GALFDY TDI-23 GYSFTSYW 7 IYPGDSDT 16 ARQLRD 26 QTISSNY 36 GAS 40 QQDYNLPRT 49 YYGMDV TDI-38 GYSFTSYW 8 IYPG 17 ARQLRD 27 QSVSSSY 37 GAS 40 QQDYNLPRT 50 DSDT YYSMDV
(205) TABLE-US-00002 TABLE A2 CDR sequences of humanized antibodies. Variable Heavy Chain (VH) Variable Light Chain (VL) SEQ SEQ SEQ SEQ SEQ SEQ ID ID ID ID ID ID CDR 1 NO CDR 2 NO CDR 3 NO CDR 1 NO CDR 2 NO CDR 3 NO bDG AS30SS_ GFTFTDSV 316 IYPGSGNF 318 AMRRSS 320 QTIVHS 332 KVS 334 FQGSHVPLT 336 Hu6 NSKTY AS30SS_ GFTFTDSV 316 IYPGSGNF 318 AMRRSS 320 QTIVHS 332 KVS 334 FQGSHVPLT 336 Hu9 NSKTY L-4/5 C3_ GFTFSSYT 380 ISSSGSNT 382 ARFDYGSSLDS 384 QSISNN 396 YAS 398 QQSKSWPRT 400 Hu10 CE_ GFTFSSYT 412 ISSSGSNT 414 ARFDYGSSLDS 416 QSIGNN 428 YAS 430 QQSKSWPRT 432 Hu11 C21_ GFTFSSYT 444 ISSSGSNT 446 ARFDYGSSLDS 448 QSISNY 460 YAS 462 QQSKSWPRT 464 Hu11 C21_ GFTFSSYT 476 ISSSGDNT 478 ARFDYGSSLDS 480 QSISNY 492 YAS 494 QQSKSWPRT 496 Hu21
(206) TABLE-US-00003 TABLE B CDR sequences of anti-LG-5 VH and VL regions. Variable Heavy Chain (VH) Variable Light Chain (VL) SEQ SEQ SEQ SEQ SEQ SEQ ID ID ID ID ID ID L-5 CDR 1 NO CDR 2 NO CDR 3 NO CDR 1 NO CDR 2 NO CDR 3 NO AN01 GYTFTSYN 51 INPYNDGT 56 AIYGNSY 61 KSLLHSN 66 YMS 71 MQGLEYPYT 76 GNTY C3 GFTFSSYT 52 ISSGGGNT 57 ARFDYGSSLDS 62 QSISNN 67 YAS 72 QQSKNWPRT 77 C21 GFTFSSYT 53 ISSGGDNT 58 ARFDYGSSLDC 63 QSISNY 68 YAS 73 QQSKSWPRT 78 TLF39 GYSFTSYW 54 IYPGDSDT 59 ARRGYRS 64 QGIRND 69 AAS 74 LQDYNYPLT 79 SWYFDY TLF86 GFTFDDYG 55 INWNGGST 60 AREGGELLMDY 65 QSVSTY 70 DAS 75 QQRSNWPPT 80
(207) TABLE-US-00004 TABLE C CDR sequences of anti-LG-4/5 VH and VL regions. Variable Heavy Chain (VH) Variable Light Chain (VL) SEQ SEQ SEQ SEQ SEQ SEQ ID ID ID ID ID ID L-4/5 CDR 1 NO CDR 2 NO CDR 3 NO CDR 1 NO CDR 2 NO CDR 3 NO CL-40968 GFTFSHYS 81 IYPSGGT 96 ARHWRGYSSSWYH 111 QSVSSY 126 DAS 141 QQRSNWPLT 155 PAYFDY CL-40992 GFTFSWYP 82 IYPSGGTT 97 ARSYYYDSSGYYSH 112 QSIDTY 127 AAS 142 QQSYSSPGIT 156 DAFDI CL-41136 GFTFSDYE 83 IWPSGGLT 98 ARDSYYYDSSGALGY 113 QSVSNW 128 KAS 143 LQYVSYPLT 157 CL-41400 GFTFSYYD 84 IYSSGGHT 99 ARPGYSSGWYDG 114 QSIDTW 129 SAS 144 QQYKTYPFT 158 TYFDY CL-41500 GFTFSHYQ 85 ISPSGGFT 100 TREPGRLWAFDI 115 QDIRNW 130 AAS 145 QQADSSPRT 159 TLG3/TL GYTFTGYY 86 INPNSGGT 101 AVFGSGSS 116 QGISNS 131 AAS 146 QQYKSYPYT 160 G4 TLG26 GNTFTGYY 87 IKPSTGDT 102 AVFGSGSS 117 QGISNY 132 AAS 147 QQYKTYPYT 161 TLI-3 GFTFSSYG 88 IWYDGSNK 103 AREGGWYGGDYYY 118 QGISSA 133 DAS 148 HQFNNYPFT 162 GMDV TLI-7 GFTFSSYA 89 ISGRGGSP 104 AKDGDGSGPPYYFDY 119 QGISSW 134 AAS 149 QQYNSYPYT 163 TTLK71- GFTFSGYG 90 IWSDGSNR 105 ARDRGITMVRGL 120 QSVSSY 135 DAS 150 QQRSNWWT 164 4-6 IIKYYYYYGLDV TTLK123- GFTFSSFG 91 IYYDGSNK 106 ARDDNWNDGDFDY 121 QGISSY 136 AAS 151 QQLNSYPRT 165 3 TTLK145- GFTFNRFV 92 ISGSGGST 107 AKDFTYYYGSGNYY 122 QSISSW 137 KAS 152 QQYNSYSRT 166 6-3 NWFDP TTLK170- GGSFSGYY 93 INHSGGT 108 ARTSDYDYYYYGMDV 123 SGINL 138 YYSDSSK 153 MIWHRSALFI 167 2 GRYR WJL10 GYTFTSYE 94 IYPRDGDT 109 ARHTPGAF 124 QSLVHS 139 KVS 38 SQSTHVPYT 168 NGDTY WJL48 GFTFSRYA 95 ISSGGDYI 110 TRVLFYYYGSSY 125 QDISNF 140 YTS 154 QQGHTLPYT 169 VFFDY
(208) TABLE-US-00005 TABLE D Amino acid sequences of anti-beta- DG VH and VL regions. SEQ ID bDG Chain NO AS19 VH QVQLQQSGPELVKPGASVKMSCKASGFTFTDSVIS 170 WVKQRTGQGLEWIGEIYPGSGSIYYNEKFKGKATL TADKSSNTAYMQLRSLTSEDSAVYFCAMRRSYWGQ GTLVTVSA VL DVLMTQTPLSLPVSLGDQASISCRSSQSIVHSNGN 171 TYLEWYLQKPGQSPKLLIYKVSNRFSGVPDRFSGS GSGTDFTLKISRVEAEDLGVYYCFQGSHVPLTFGA GTKLELK AS30 VH QIQLQQSGPELVKPGASVKMSCEASGFTFTDSVIT 172 S/S WVKQRPGQGLEWIGEIYPGSGNFYYNEKFKGKATL TADKSSNTAYMQLRSLTSEDSAVYFCAMRRSSWGQ GTLVTVSA VL DVLMTQTPLSLPVSLGDQASISCRSSQTIVHSNSK 173 TYLEWYLQKPGQSPKLLIYKVSNRFSGVPDRFSGS GSGTDFTLKISRVEAEDLGVYYCFQGSHVPLTFGA GTKLELK B04 VH QVQLQQSGGGLVQPGGSLRLSCAASGFTFSSYAMS 174 WVRQAPGKGLEWVSAISGSGGSTYYADSVKGRFTV SRDNSKNTLYLQMNSLRAEDTAVYYCARLGYCSST SCYLSAFDIWGQGTMVTVSS VL EIVLTQSPSTLSASVGDRVTITCRASQSISSWLAW 175 YQQKPGKAPKLLIYDASSLESGVPSRFSGSGSGTE FTLTISSLQPDDFATYYCQQYNSYPLTFGGGTKVE IK B06 VH QIQLVQSGAEVKKPGKSLKIACKGSGYSFSNYWIG 176 WVRQMPGKGLEWMGIIYPGDSDTRYSPSFHGQVTI SADKSISTAYLQWSSLKASDTAMYYCARGVIINGT TSGFDYWGQGTLVIVSS VL ETTLTQSPATLSVSPGERATLSCRASQSVSSNLAW 177 YQQKPGQAPRLLMYGASTRATGIPARFSGSGSGTE FTLTISSLQSEDFAVYYCQHYNNLPLTFGGGTKVD LK C107 VH EVQLQQSGAELVKPGASVKLSCTASGFNIKDTYIH 178 WVKQRPEQGLEWIGRIDPANGNTKYDPKFQGKATI TADTSSNIVYVQFSSLTSEDTAVYYCGRSGGNYVG YWGQGTTLTVSS VL DIVMSQSPSSPTVSVGEKVTMTCKSSQSLLDSGNQ 179 KNYLAWYQQKPGQSPKLLIYWASTRKSGVPDRFTG SGSGTDFTLSISSVKAEDLAVYYCQQYYTYPWTFG GGTKLEIK D87/D3 VH EVQLQQSGAELVKPGASVKLSCTASGFNIKDTY 180 9/D173 MHWVKERPEQGLEWIGRIDPANGNTKYDPKFQG KATITADTSSNTAYLQLSSLTSEDTAVYYCGRS RGNYFDYWGQGTTLTVSS VL DIVMSQPPSSLAVSVGEKVTMTCKSSQSLLYSSNQ 181 KNYLAWYQQKPGQSPKLLIYWASTRESGVPDRFTG SGSGTDFTLTISSVKAEDLAVYYCQQYYTYPWTFG GGTKLEIK TDG-2 VH QVQLVQSGAEVKKPGTSVKVSCKASGYTFTTYYMH 182 WVRQAPGQGLEWMGLINPSAGNTRNAQKFQGRVTM TRDTSTNTVYMELSSLRSEDTAVYYCARELDIWGQ GTKVTVSS VL AIQMTQSPSSLSASVGDRVTITCRASQDIRNDLGW 183 YQQKPGKAPKLLIYAASSLQSGVPSRFSGNGSGTD FTLTINSLQPEDFATYYCLQDFNFPFTFGPGTTVD IN TDI-11 VH QVQLVESGGGVVQSGRSLRLSCAASGFTFSSYGMH 184 WVRQAPGKGLEWVAVIWYDGSNKYYADSVKDRFTI SRDNSKKTVYLQMNSLRAEDTAVYYCAREGMVRGA LFDYWGQGTLVTVSS VL EIVMTQSPATLSLSPGERATLSCRASQSVSSSYLS 185 WYQQKPGQAPRLLIYGASTRATGIPARFSGSGSGP DLTLTISSLQPEDFAVYYCQQDYNLPYTFGQGTKL EIK TDI-23 VH EVQLVQSGAEVKKPGESLKISCKGSGYSFTSYWIG 186 WVRQMPGKGLEWMGVIYPGDSDTRYSPSFQGQVTM SADKSISTAYLQWSSLKASDSAMYYCARQLRDYYG MDVWGQGTTVTVSS VL EIVMTQSPATLSLSPGERATLSCRASQTISSNYFS 187 WYQQKPGQAPRLLIYGASTRATGIPARFSGSGSET DFTLTISSLQPEDFAVYYCQQDYNLPRTFGQGTKV EIK TDI-38 VH EVQLVQSGAEVKKPGESLKISCKGSGYSFTSYWIG 188 WVRQMPGKGLEWMGIIYPGDSDTRYSPSFQGQVTI SADKSISTAYLHWSSLKASDTAMYYCARQLRDYYS MDVWGQGTTVTVSS VL EIVMTQSPATLSLSPGERATLSCRASQSVSSSYLS 189 WYQQKPGQAPRLLIYGASTRATGIAARFSGSGSGT DFTLTISSLQPEDFAVYYCQQDYNLPRTFGQGTKV EIK
(209) TABLE-US-00006 TABLE D2 Amino acid sequences of humanized VH and VL regions. SEQ ID Chain NO AS30SS_Hu6 VH QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYP 314 GSGNFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQ GTLVTVSS VL DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIY 330 KVSSRFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGT KLEIK AS30SS_Hu9 VH QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYP 346 GSGNFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQ GTLVTVSS VL DVVMTQTPLSLSVTPGQPASISCRSSQTIVHSNSKTYLEWYLQKPGQSPQLLIY 362 KVSNRFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGAGT KLEIK C3_Hu10 VH EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASIS 378 SSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSL DSWGQGTLLTVSS VL EIVLTQSPDFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSI 394 SGIPSRFSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIK C3_Hu11 VH EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASIS 410 SSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSL DSWGQGTLLTVSS VL EIVLTQSPDFLSVTPKEKVTLTCRASQSIGNNLHWYQQKSDQSPKLLIKYASQSI 426 SGIPSRFSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIK C21_Hu11 VH EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASIS 442 SSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSL DSWGQGTLLTVSS VL EIVLTQSPDFLSVTPKEKVTLSCRASQSISNYLHWYQQKSDQSPKLLIKYASQSI 458 SGIPSRFSGSGSGTDFTLSINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIK C21_Hu21 VH EVQLVESGGGLVQPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVATIS 474 SSGDNTYYPDSVKGRFTISRDNSKNTLYLQMSSLRAEDTALYYCARFDYGSSL DSWGQGTTLTVSS VL EIVLTQSPDFLSVTPGEKVTLTCRASQSISNYLHWYQQKSDQSPKLLIKYASQSI 490 SGVPSRFSGSGSGTDFTLTISSVEAEDFATYFCQQSKSWPRTFGGGTKLEIK
(210) TABLE-US-00007 TABLE E Amino acid sequences of anti-LG-5 VH and VL regions. SEQ ID LG-5 Chain Amino Acid Sequence NO AN01 VH EVQLQQSGPELVKPGASVKMSCKASGYTFTSYNIHWVKQKPGQGLEWIGYINPYN 190 DGTKYSEKFKGKATLTSDRSSSTAYMEVSSLTSEDSAVYYCAIYGNSYWGQGSTLTVS S VL DIVMTQAAPSIPVTPGESVSISCRSSKSLLHSNGNTYLYWFLQRPGQSPQRLIYYMSN 191 LDSGVPDRFSGRGSGTDFTLRISRVEAEDVGVYYCMQGLEYPYTFGGGTKLEIK C3 VH DVMLVESGGDLVKPGGSLKLSCAASGFTFSSYTMSWVRQTPEKRLEWVASISSGGG 192 NTYYPDSVKGRFTISRDNAKNNLYLQMSSLRSEDTALYYCARFDYGSSLDSWGQGT TLTVSS VL DIVLTQSPATLSVTPGDSVSLSCRASQSISNNLHWYQQKSHESPRLLIKYASQSISGIP 193 SRFSGSGSGTDFTLSINSVETEDFGMYFCQQSKNWPRTFGGGTKLEIK C21 VH EVMLVESGGGLVKPGGSLKLSCAASGFTFSSYTMSWVRQTPEKRLEWVATISSGGD 194 NTYYPDSVKGRFTISRDNAKNNLYLQMSSLRSEDTALYYCARFDYGSSLDCWGQGT TLTVSS VL DIVLTQSPATLSVTPGDSVSLSCRASQSISNYLHWYQQKSHESPRLLIKYASQSISGIPS 195 RFSGSGSGTDFTLSINSVETEDFGMYFCQQSKSWPRTFGGGTELEIK TLF39 VH EVQLVQSGAEVKKPGESLKISCKGSGYSFTSYWIGWVRQMPGKGLEWMGIIYPGD 196 SDTRYSPSFQGQVTISADKSISTAYLQWSSLKASDTAMYYCARRGYRSSWYFDYWG QGTLVTVSS VL AIQMTQSPSSLSASVGDRVTITCRASQGIRNDLGWYQQKPGKAPKLLIYAASSLQSG 197 VPSRFSGSGSGTDFTFTISSLQPEDFATYYCLQDYNYPLTFGGGTKVEIK TLF86 VH EVQLVESGGGVVRPGGSLRLSCAASGFTFDDYGMSWVRQAPGKGLEWVSGINW 198 NGGSTGYADSVKGRFTISRDNAKNSLYLQMNSLRAEDTALYHCAREGGELLMDYW GQGTLVTVSS VL EIVLTQSPATLSLSPGERATLSCRASQSVSTYLAWYQQKPGQAPRLLIYDASNRATGI PPRFSGSGSGTDFTLTISSLEPEDFAVYYCQQRSNWPPTFGGGTTVEIK 199
(211) TABLE-US-00008 TABLE F Amino acid sequences of anti-LG-4/5 VH and VL regions. SEQ ID LG-4/5 Chain Amino Acid Sequence NO CL- VH EVQLLESGGGLVQPGGSLRLSCAASGFTFSHYSMVWVRQAPGKGLEWVSYIYPSG 200 40968 GTSYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARHWRGYSSSWYHPAY FDYWGQGTLVTVSS VL DIQMTQSPATLSLSPGERATLSCRASQSVSSYLAWYQQKPGQAPRLLIYDASNRATG 201 IPARFSGSGSGTDFTLTISSLEPEDFAVYYCQQRSNWPLTFGGGTKVEIK CL- VH EVQLLESGGGLVQPGGSLRLSCAASGFTFSWYPMMWVRQAPGKGLEWVSSIYPS 202 40992 GGTTTYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARSYYYDSSGYYSHD AFDIWGQGTMVTVSS VL DIQMTQSPSSLSASVGDRVAITCRASQSIDTYLNWYQQKPGKAPKLLIYAASKLEDG 203 VPSRFSGSGTGTDFTLTIRSLQPEDFASYFCQQSYSSPGITFGPGTKVEIK CL- VH EVQLLESGGGLVQPGGSLRLSCAASGFTFSDYEMHWVRQAPGKGLEWVSSIWPSG 204 41136 GLTKYADPVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARDSYYYDSSGALGY WGQGTLVTVSS VL DIQMTQSPSTLSASVGDRVTITCRASQSVSNWLAWYQQKPGKAPKLLIYKASSLESG 205 VPSRFSGSGSGTEFTLTISSLQPDDFATYYCLQYVSYPLTFGGGTKVDIK CL- VH EVQLLESGGGLVQPGGSLRLSCAASGFTFSYYDMYWVRQAPGKGLEWVSRIYSSGG 206 41400 HTWYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARPGYSSGWYDGTYF DYWGQGTLVTVSS VL DIQMTQSPSTLSASVGDRVTITCRASQSIDTWLAWYRQKPGKAPNVVIHSASTLQS 207 GVPARFSGSGFGTEWTLTITNLQPDDFATYYCQQYKTYPFTFGQGTKLEIK CL- VH EVQLLESGGGLVQPGGSLRLSCAASGFTFSHYQMEWVRQAPGKGLEWVSSISPSG 208 41500 GFTSYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCTREPGRLWAFDIWGQ GTMVTVSS VL DIQMTQSPSFVSASVGDRVTITCRASQDIRNWLAWYQQESGKAPRLLISAASSRHS 209 GVSSRFSGSGSGTDFTLTITSLQPEDSATYFCQQADSSPRTFGQGTKVEIK TLG3/ VH QVQLVQSGAEVKKPGASVKVSCKASGYTFTGYYMHWVRQAPGQGLEWMGWIN 210 TLG4 PNSGGTNYAQKFQGRVTMTRDTSINTAYMELSRLRSDDTAVYYCAVFGSGSSWGQ GTLVTVSS VL DIQMTQSPSSLSASVGDRVTITCRASQGISNSLAWFQQKPGKAPKSLIYAASSLQSG 211 VPSKFSGSGSGTDFTLTISSLQPEDFATYYCQQYKSYPYTFGQGTKLEIK TLG26 VH QVQLVQSGAEVKKPGASVKVSCKASGNTFTGYYIHWVRQAPGQGLEWMGWIKPS 212 TGDTNYAQNFLDRVTMTRDTSISTAYMELSRLRSDDTAVYYCAVFGSGSSWGQGT LVTVSS VL DIHMTQSPSSLSAFVGDRVTITCRASQGISNYLAWFQQKPGKAPKSLIYAASSLQSG 213 VPSKFSGSGSGTDFTLTINNLQPEDFATYYCQQYKTYPYTFGQGTKLEIK TLI-3 VH QVQLVESGGGVVQPGRSLRLSCAASGFTFSSYGMHWVRQAPGKGLEWVAVIWYD 214 GSNKYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDAAVYYCAREGGWYGGDYYY GMDVWGQGTTVTVSS VL AIQLTQSPSSLSASVGDRVTITCRASQGISSALAWYQQKPGKAPKLLIYDASSLESGVP 215 SRFSGSGSGTDFTLTISSLQPEDFATYYCHQFNNYPFTFGPGTKVDIK TLI-7 VH EVQLLESGGGLVQPGGSLRLSCVASGFTFSSYAMSWVRQAPGKGLEWVSGISGRG 216 GSPNYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDGDGSGPPYYFDY WGQGTLVTVSS VL DIQMTQSPSSLSASVGDRVTITCRASQGISSWLAWYQQKPEKAPKSLIYAASSLQSG 217 VPSRFSGSGSGTDFTLTISSLQPEDFATYYCQQYNSYPYTFGQGTKLEIK TTLK71- VH QVQLMESGGGVVQPGRSLRLSCAASGFTFSGYGMHWVRQAPGKGLEWVAVIWS 218 4-6 DGSNRYYTDSVKGRFTISRDNSKNTLSLQMNSLRAEDTAVYYCARDRGITMVRGLII KYYYYYGLDVWGQGTSVTVSS VL EIVLTQSPATLSLSPGERATLSCRASQSVSSYLAWYQQKPGQAPRLLIYDASNRATGI 219 PARFSGSGSGTDFTLTISSLEPEDFAVYYCQQRSNWWTFGQGTKVEIK TTLK123- VH QVQLVESGGGVVQPGRSLRLSCAASGFTFSSFGMHWVRQAPGKGLEWVAVIYYD 220 3 GSNKYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARDDNWNDGDFDY WGQGTLVTVSS VL DIQLTQSPSFLSASVGDRVTITCRASQGISSYLAWYQQKPGKAPKLLIYAASTLQSGV 221 PSRFSGSGSGTEFTLTISSLQPEDFATYYCQQLNSYPRTFGQGTKVEIK TTLK145- VH EVQLLESGGGLVQPGESLRLSCAASGFTFNRFVMSWVRQAPGKGLEWVSTISGSG 222 6-3 GSTYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCAKDFTYYYGSGNYYN WFDPRGQGTLVTVSS VL DIQMTQSPSTLSTSVGDRVTITCRASQSISSWLAWYQQKPGKAPKLLIYKASSLESGV 223 PSRFSGSGSGTEFTLTISSLQPDDFATYYCQQYNSYSRTFGQGTKVEIK TTLK170- VH QVQLQQWGAGLLKPSETLSLTCAVYGGSFSGYYWSWIRQPPGKGLEWIGEINHSG 224 2 GTNYNPSLKSRVTISVDTSKNHFSLKLSSVTAADTAVYYCARTSDYDYYYYGMDVW GQGTTVTVSS VL QPVLTQPTSLSASPGASARLTCTLRSGINLGRYRIFWYQQKPESPPRYLLSYYSDSSKH 225 QGSGVPSRFSGSKDASSNAGILVISGLQSEDEADYYCMIWHRSALFIFGSGTKVTVL WJL10 VH QVQLQQSGPELVKPGASVKLSCKASGYTFTSYEINWLKQRPGQGLEWIGLIYPRDG 226 DTKYNEKFKGKATLTADTSSSTAYMELHSLTSEDSAVYFCARHTPGAFWGQGTLVT VSA VL DVVMTQTPLSLPVSLGDQASISCRSSQSLVHSNGDTYLHWYLQKPGQSPKLLIYKVS 227 NRFSGVPDRFSGSGSGTDFTLKISRVEAEDLEIYFCSQSTHVPYTFGGGTKLEIK WJL48 VH DVKLVESGEGLVKPGGSLKLSCAASGFTFSRYAMSWVRQTPEKRLEWVAYISSGGD 228 YIHYGETVKGRFTISRDNARNTLYLQMSSLKSEDTAMYYCTRVLFYYYGSSYVFFDY WGQGTTLTVSS VL DIQMTQTTSSLSVSLGDRVTISCRASQDISNFLNWYQQKPDGTVNLLIYYTSKLHSGV 229 PSRFSGGGSGRDYSLTINNLEQEDIASYFCQQGHTLPYTFGGGTKLEIK
(212) TABLE-US-00009 TABLE G Nucleic acid sequences of anti-beta-DG VH and VL regions. SEQ ID bDG Chain Nucleotide Sequence NO AS19 VH CAGGTGCAGCTGCAGCAGAGCGGTCCCGAGCTGGTGAAACCTGGCGCATCAGT 230 CAAAATGAGCTGCAAGGCCTCCGGCTTCACTTTTACCGACTCAGTGATCAGCTG GGTCAAGCAGCGAACCGGTCAGGGACTGGAGTGGATCGGAGAAATCTACCCTG GATCTGGGAGTATCTACTATAACGAGAAGTTCAAAGGGAAGGCAACACTGACT GCCGACAAAAGCTCCAATACAGCCTATATGCAGCTGCGATCCCTGACTTCTGAA GATAGCGCCGTGTACTTTTGCGCAATGCGGAGGTCCTATTGGGGTCAGGGCACC CTGGTGACAGTCTCTGCT VL GACGTGCTGATGACCCAGACACCCCTGAGTCTGCCTGTCTCACTGGGAGATCAG 231 GCTTCTATCAGTTGCCGAAGCTCCCAGAGCATCGTGCATTCCAACGGAAATACCT ACCTGGAGTGGTATCTGCAGAAGCCAGGGCAGTCCCCCAAGCTGCTGATCTACA AAGTGTCTAACCGGTTCAGTGGCGTCCCAGACAGGTTTTCAGGTAGCGGCTCCG GAACTGATTTCACCCTGAAAATTTCCCGGGTGGAGGCAGAAGACCTGGGTGTCT ACTATTGCTTCCAGGGCAGCCATGTGCCCCTGACTTTTGGGGCCGGTACCAAGCT GGAGCTGAAA AS30 VH CAGATCCAGCTGCAGCAGTCCGGTCCCGAGCTGGTGAAACCTGGCGCATCTGTC 232 S/S AAGATGAGTTGCGAAGCCTCAGGCTTCACTTTTACCGACTCCGTGATTACCTGGG TCAAACAGCGCCCAGGCCAGGGACTGGAGTGGATCGGAGAAATCTACCCCGGA TCTGGGAACTTCTACTATAATGAGAAGTTTAAAGGGAAGGCAACACTGACTGCC GACAAGAGCTCCAACACCGCCTACATGCAGCTGCGATCACTGACAAGCGAAGAT AGCGCCGTGTACTTCTGCGCAATGCGGAGGTCTAGTTGGGGTCAGGGCACCCTG GTGACAGTCTCTGCT VL GACGTGCTGATGACCCAGACACCCCTGTCTCTGCCTGTCAGTCTGGGAGATCAG 233 GCTTCTATCAGTTGCCGAAGCTCCCAGACCATCGTGCATTCAAACAGCAAGACAT ACCTGGAGTGGTATCTGCAGAAACCAGGCCAGTCCCCCAAGCTGCTGATCTACA AAGTGTCAAATCGGTTCTCTGGAGTCCCAGACAGGTTTTCCGGTTCTGGCAGTG GAACTGATTTCACCCTGAAGATTTCTCGGGTGGAGGCAGAAGACCTGGGTGTCT ACTATTGCTTCCAGGGGAGCCATGTGCCCCTGACTTTTGGGGCCGGTACCAAGC TGGAGCTGAAA B04 VH CAGGTGCAGCTGCAGCAGTCGGGGGGAGGCTTGGTACAGCCTGGGGGGTCCCT 234 GAGACTCTCCTGTGCAGCCTCTGGATTCACCTTTAGCAGCTATGCCATGAGCTGG GTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGGTCTCAGCTATTAGTGGTAG TGGTGGTAGCACATACTACGCAGACTCCGTGAAGGGCCGGTTCACCGTCTCCAG AGACAATTCCAAGAACACGCTGTATCTGCAAATGAACAGCCTGAGAGCCGAGG ACACGGCCGTATATTACTGTGCGAGGCTAGGATATTGTAGTAGTACCAGCTGCT ATTTGTCTGCTTTTGATATCTGGGGCCAAGGGACAATGGTCACCGTCTCTTCA VL GAAATTGTGTTGACACAGTCTCCTTCCACCCTGTCTGCATCTGTAGGAGACAGAG 235 TCACCATCACTTGCCGGGCCAGTCAGAGTATTAGTAGCTGGTTGGCCTGGTATC AGCAGAAACCAGGGAAAGCCCCTAAGCTCCTGATCTATGATGCCTCCAGTTTGG AAAGTGGGGTCCCATCAAGGTTCAGCGGCAGTGGATCTGGGACAGAATTCACT CTCACCATCAGCAGCCTGCAGCCTGATGATTTTGCAACTTATTACTGCCAACAGT ATAATAGTTACCCGCTCACTTTCGGCGGAGGGACCAAGGTGGAGATCAAA B06 VH CAGATCCAGCTGGTGCAGTCTGGCGCCGAAGTGAAGAAGCCTGGCAAGAGCCT 236 GAAGATCGCCTGCAAGGGCTCCGGCTACAGCTTCAGCAACTACTGGATCGGCTG GGTGCGCCAGATGCCTGGAAAAGGACTGGAATGGATGGGCATTATCTACCCTG GCGACAGCGACACCCGGTACAGCCCCAGCTTCCACGGCCAGGTGACAATCAGC GCCGACAAGAGCATCTCCACCGCCTACCTGCAGTGGTCCTCCCTGAAGGCCAGC GACACCGCCATGTACTATTGTGCCAGAGGCGTGATCATCAACGGCACCACCAGC GGCTTCGACTATTGGGGACAGGGCACCCTGGTGATCGTGTCCTCC VL GAGACAACCCTGACCCAGAGCCCCGCCACCCTGTCCGTGTCTCCAGGCGAGAGA 237 GCCACCCTGAGCTGCAGAGCCAGCCAGAGCGTGTCCAGCAACCTGGCCTGGTAT CAGCAGAAGCCCGGCCAGGCCCCCAGACTGCTGATGTACGGCGCCAGCACCAG AGCCACCGGCATCCCTGCCAGATTCAGCGGCAGCGGCTCCGGCACCGAGTTCAC CCTGACCATCAGCAGCCTGCAGAGCGAGGACTTCGCCGTGTACTACTGCCAGCA CTACAACAACCTGCCCCTGACCTTCGGCGGAGGCACCAAGGTGGACCTGAAG C107 VH GAAGTCCAACTCCAACAGTCTGGGGCAGAACTTGTCAAACCTGGGGCTTCAGTA 238 AAATTGAGTTGCACAGCAAGTGGCTTTAACATCAAAGACACATATATTCATTGG GTGAAGCAACGACCAGAACAAGGCTTGGAGTGGATCGGTAGGATTGACCCTGC AAACGGGAATACAAAATATGACCCTAAATTCCAGGGAAAGGCTACAATAACAGC AGACACCAGCAGTAACATTGTCTATGTGCAATTTAGCTCTCTTACCTCTGAGGAC ACTGCTGTCTATTATTGCGGACGTAGTGGCGGGAATTATGTGGGTTATTGGGGC CAGGGGACAACACTCACCGTATCCTCT VL GATATAGTAATGTCCCAGTCTCCTTCATCACCTACTGTGTCAGTTGGAGAAAAAG 239 TCACCATGACCTGTAAGTCCTCACAGTCCCTCTTGGACAGCGGGAATCAGAAAA ATTATCTCGCATGGTATCAGCAAAAGCCAGGGCAGTCCCCTAAGCTGTTGATCTA TTGGGCAAGTACAAGGAAAAGTGGCGTGCCTGATAGATTCACAGGGAGCGGCA GCGGGACAGACTTCACTTTGAGCATCTCTTCAGTAAAAGCCGAAGACCTGGCAG TGTACTACTGTCAGCAATATTATACCTACCCTTGGACTTTTGGTGGCGGGACCAA ACTGGAAATAAAA D87/D39/ VH GAGGTTCAACTTCAGCAATCAGGGGCTGAGCTTGTAAAACCTGGAGCCTCTGTA 240 D173 AAACTCTCTTGTACCGCCTCCGGGTTCAACATAAAAGATACATATATGCACTGGG TAAAGGAGCGGCCCGAACAGGGACTCGAATGGATCGGGAGGATTGACCCAGCT AACGGAAATACCAAGTATGATCCAAAATTTCAGGGGAAAGCTACAATAACCGCC GATACTTCTAGTAATACAGCATATCTTCAGCTCAGCAGCTTGACAAGCGAAGATA CCGCAGTTTACTACTGCGGTCGATCCCGAGGGAATTATTTTGACTACTGGGGCC AGGGTACTACTCTCACAGTAAGTAGC VL GACATAGTAATGAGCCAGCCACCTAGTTCACTTGCCGTAAGTGTGGGTGAAAAG 241 GTGACTATGACCTGTAAAAGTAGTCAGAGCCTCCTTTACTCATCAAATCAGAAGA ATTACTTGGCCTGGTATCAACAGAAACCTGGACAAAGCCCCAAACTCCTCATATA CTGGGCCTCTACCCGAGAGTCCGGCGTACCAGATCGGTTTACCGGTTCTGGATC AGGTACAGACTTTACACTTACCATCTCTTCAGTGAAGGCTGAGGACTTGGCCGT GTATTATTGTCAACAATATTATACATATCCTTGGACTTTTGGCGGAGGGACAAAG CTCGAAATAAAG TDG-2 VH CAGGTGCAGCTGGTGCAGTCTGGCGCCGAAGTGAAGAAACCCGGCACCTCCGT 242 GAAGGTGTCCTGCAAGGCTTCCGGCTACACCTTTACCACCTACTACATGCACTGG GTGCGACAGGCCCCTGGACAGGGCCTGGAATGGATGGGCCTGATCAACCCTTC CGCCGGCAACACCAGAAACGCCCAGAAATTCCAGGGCAGAGTGACCATGACCC GGGACACCTCCACCAACACCGTGTACATGGAACTGTCCTCCCTGCGGAGCGAGG ACACCGCCGTGTACTACTGTGCCAGAGAGCTGGACATCTGGGGCCAGGGCACC AAAGTGACCGTGTCCTCT VL GCCATCCAGATGACCCAGTCCCCCAGCTCCCTGTCTGCCTCTGTGGGCGACAGA 243 GTGACCATCACCTGTCGGGCCTCTCAGGACATCCGGAACGACCTGGGCTGGTAT CAGCAGAAGCCTGGCAAGGCCCCCAAGCTGCTGATCTACGCCGCTTCCAGTCTC CAGTCCGGCGTGCCCTCCAGATTCTCCGGCAATGGCTCTGGCACCGACTTCACCC TGACCATCAACTCCCTCCAGCCCGAGGACTTCGCCACCTACTACTGTCTCCAAGA CTTCAACTTCCCCTTCACCTTCGGCCCTGGCACCACCGTGGACATCAAC TDI-11 VH CAGGTGCAGCTGGTGGAGTCTGGGGGAGGCGTGGTCCAGTCTGGGAGGTCCCT 244 GAGACTCTCCTGTGCAGCGTCTGGATTCACCTTCAGTAGTTATGGCATGCACTGG GTCCGCCAGGCTCCAGGCAAGGGGCTGGAGTGGGTGGCAGTTATATGGTATGA TGGAAGTAATAAATACTATGCAGACTCCGTGAAGGACCGATTCACCATCTCCAG AGACAATTCCAAGAAAACGGTGTATCTGCAAATGAACAGTCTGAGAGCCGAGG ACACGGCTGTTTATTACTGTGCGAGAGAAGGGATGGTTCGGGGAGCCCTCTTTG ACTACTGGGGTCAGGGAACCCTGGTCACCGTCTCCTCA VL GAAATTGTAATGACACAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 245 GCCACCCTCTCCTGCAGGGCCAGTCAGAGTGTTAGCAGCAGCTACTTATCCTGGT ACCAACAGAAACCTGGGCAGGCTCCCAGGCTCCTCATCTATGGTGCATCCACCA GGGCCACTGGCATCCCAGCCAGGTTCAGTGGCAGTGGGTCTGGGCCAGACCTC ACTCTCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAGTTTATTACTGTCAGC AGGATTATAACTTACCGTACACTTTTGGCCAGGGGACCAAGCTGGAGATCAAA TDI-23 VH GAGGTGCAGCTGGTGCAGTCTGGAGCAGAGGTGAAAAAGCCCGGGGAGTCTCT 246 GAAGATCTCCTGTAAGGGTTCTGGATACAGTTTTACTAGTTACTGGATCGGCTG GGTGCGCCAGATGCCCGGGAAAGGCCTGGAGTGGATGGGAGTCATCTATCCTG GTGACTCTGATACCAGATATAGCCCGTCCTTCCAAGGCCAGGTCACCATGTCAGC CGACAAGTCCATCAGTACCGCCTACCTGCAGTGGAGCAGCCTGAAGGCCTCGGA CAGCGCCATGTATTACTGTGCGAGACAGCTACGAGACTACTACGGTATGGACGT CTGGGGCCAAGGGACCACGGTCACCGTCTCCTCA VL GAAATTGTAATGACACAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 247 GCCACCCTCTCCTGCAGGGCCAGTCAGACTATCAGCAGCAACTACTTTTCCTGGT ACCAGCAGAAACCTGGGCAGGCTCCCAGGCTCCTCATCTATGGTGCATCCACCA GGGCCACTGGCATTCCAGCCAGGTTCAGTGGCAGTGGGTCTGAGACAGACTTCA CTCTCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAGTTTATTACTGTCAGCA GGATTATAACTTACCTCGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA TDI-38 VH GAGGTGCAGCTGGTGCAGTCTGGAGCAGAGGTGAAAAAGCCCGGGGAGTCTCT 248 GAAGATCTCCTGTAAGGGTTCTGGATACAGCTTTACCAGCTACTGGATCGGCTG GGTGCGCCAGATGCCCGGGAAAGGCCTGGAGTGGATGGGGATCATCTATCCTG GTGACTCTGATACCAGATACAGCCCGTCCTTCCAAGGCCAGGTCACCATCTCAGC CGACAAGTCCATCAGCACCGCCTACCTGCACTGGAGCAGCCTGAAGGCCTCGGA CACCGCCATGTATTACTGTGCGAGACAGCTACGAGACTACTACAGTATGGACGT CTGGGGCCAAGGGACCACGGTCACCGTCTCCTCA VL GAAATTGTAATGACACAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 249 GCCACCCTCTCCTGCAGGGCCAGTCAGAGTGTTAGCAGCAGCTACTTATCCTGGT ACCAGCAGAAACCTGGGCAGGCTCCCAGGCTCCTCATCTATGGTGCATCCACCA GGGCCACTGGCATTGCAGCCAGGTTCAGTGGCAGTGGGTCTGGGACAGACTTC ACTCTCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAGTTTATTACTGTCAGC AGGATTATAACTTACCTCGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA
(213) TABLE-US-00010 TABLE G2 Nucleic acid sequences of humanized VH and VL regions. SEQ ID Domain Nucleotide Sequence NO AS30SS_Hu6 VH CAAGTACAACTGGTTCAATCAGGCGCAGAAGTCGTAAAACCTGGTTCCAGCGTA 306 AAAGTCAGTTGTGAGGCTAGTGGATTCACCTTCACCGATAGCGTTATTACATGG GTTCGTCAGCGCCCAGGTCAAGGGCTCGAGTGGATTGGGGAAATTTACCCAGG AAGTGGAAATTTCTACTACAATGAAAAATTTCAAGGCCGGGTGACCATCACTGC TGATAAAAGCACTTCAACAGCCTATATGGAATTGTCCAGCTTGCGCTCCGAAGAC ACTGCCGTTTATTTCTGCGCCATGCGTAGGTCTTCCTGGGGACAGGGTACACTTG TAACTGTCAGCTCT VL GACGTCGTAATGACTCAAACACCCCTCTCTCTTTCTGTTACCCCCGGACAGCCTG 322 CTTCAATCAGTTGTAAATCATCCCAAACCATAGTTCATTCTAATAGTAAAACTTAC CTCGAATGGTATCTCCAAAAACCTGGTCAGTCACCACAGCTCCTTATTTACAAGG TTAGTTCCAGATTCTCTGGCGTCCCTGACCGCTTCTCTGGCTCCGGTTCAGGCAC CGACTTTACTCTGAAAATCTCACGGGTTGAAGCTGAAGATGTTGGAGTGTACTA CTGCTTCCAGGGTTCTCACGTCCCATTGACCTTTGGACAGGGAACTAAGCTCGAA ATAAAA AS30SS_Hu9 VH CAAGTACAACTGGTTCAATCAGGCGCAGAAGTCGTAAAACCTGGTTCCAGCGTA 338 AAAGTCAGTTGTGAGGCTAGTGGATTCACCTTCACCGATAGCGTTATTACATGG GTTCGTCAGCGCCCAGGTCAAGGGCTCGAGTGGATTGGGGAAATTTACCCAGG AAGTGGAAATTTCTACTACAATGAAAAATTTCAAGGCCGGGTGACCATCACTGC TGATAAAAGCACTTCAACAGCCTATATGGAATTGTCCAGCTTGCGCTCCGAAGAC ACTGCCGTTTATTTCTGCGCCATGCGTAGGTCTTCCTGGGGACAGGGTACACTTG TAACTGTCAGCTCT VL GATGTGGTGATGACTCAGACACCCCTGAGTCTCAGCGTAACACCTGGTCAACCC 354 GCCTCTATTAGTTGTCGAAGCTCTCAAACAATCGTACATAGTAATAGTAAAACCT ATCTCGAATGGTATCTTCAGAAACCAGGGCAGTCTCCTCAACTCCTTATATACAA AGTATCCAACAGGTTTTCCGGTGTACCCGATAGGTTTTCCGGTTCCGGCTCCGGA ACTGACTTTACCCTCAAAATAAGTCGAGTGGAGGCTGAGGATGTTGGCGTTTAT TATTGCTTTCAGGGGTCACACGTACCTCTTACCTTCGGCGCAGGCACAAAATTGG AGATTAAA C3_Hu10 VH GAAGTTCAACTGGTCGAGTCTGGAGGAGGCCTCGTGAAGCCGGGCGGTAGTTT 370 GCGCCTCTCTTGTGCCGCCTCAGGGTTTACGTTCTCTAGTTATACTATGAGTTGG GTGCGGCAGGCACCGGGAAAAGGGCTGGAATGGGTGGCCTCAATCTCTAGTAG CGGCAGCAATACTTATTATCCTGATAGTGTGAAGGGGAGGTTTACCATCTCACG GGATAACGCTAAGAACAACCTGTATCTTCAAATGAATAGCCTCCGAGCAGAGGA TACAGCACTTTACTACTGCGCTCGCTTTGACTATGGCAGCAGTCTTGATAGTTGG GGGCAGGGCACCTTGCTTACGGTTTCATCC VL GAGATCGTTCTTACCCAATCCCCGGATTTCCTTTCTGTGACCCCCAAAGAAAAAG 386 TCACACTCACCTGCCGAGCAAGCCAGTCTATTAGTAACAATTTGCACTGGTATCA GCAGAAGAGTGACCAATCTCCCAAACTCCTTATTAAGTACGCCTCTCAGTCAATA TCCGGCATACCTAGCCGCTTTTCCGGTTCTGGTAGTGGCACCGACTTTACTCTCA CTATCAATTCAGTGGAGGCTGAGGATGCCGCCACGTATTTTTGTCAGCAATCAA AGAGTTGGCCCCGGACATTTGGAGGGGGAACTAAGCTGGAGATTAAG C3_Hu11 VH GAAGTTCAACTGGTCGAGTCTGGAGGAGGCCTCGTGAAGCCGGGCGGTAGTTT 402 GCGCCTCTCTTGTGCCGCCTCAGGGTTTACGTTCTCTAGTTATACTATGAGTTGG GTGCGGCAGGCACCGGGAAAAGGGCTGGAATGGGTGGCCTCAATCTCTAGTAG CGGCAGCAATACTTATTATCCTGATAGTGTGAAGGGGAGGTTTACCATCTCACG GGATAACGCTAAGAACAACCTGTATCTTCAAATGAATAGCCTCCGAGCAGAGGA TACAGCACTTTACTACTGCGCTCGCTTTGACTATGGCAGCAGTCTTGATAGTTGG GGGCAGGGCACCTTGCTTACGGTTTCATCC VL GAAATTGTGCTTACCCAGTCCCCAGACTTCCTGTCCGTGACCCCTAAAGAGAAG 418 GTGACACTGACTTGCAGGGCCTCACAATCCATTGGCAATAACCTTCACTGGTATC AGCAGAAGTCCGACCAGTCTCCGAAACTCCTCATCAAGTATGCCAGCCAGTCAA TTAGCGGAATACCGTCTCGGTTTAGCGGATCTGGGTCTGGTACTGACTTCACGCT GACGATCAATAGCGTGGAAGCGGAGGACGCCGCCACCTATTTCTGCCAGCAATC TAAGTCCTGGCCGAGAACGTTCGGAGGCGGTACTAAACTTGAGATCAAG C21_Hu11 VH GAGGTACAGCTCGTCGAAAGTGGCGGCGGTCTTGTCAAGCCGGGAGGAAGTTT 434 GCGCCTGTCCTGTGCAGCATCCGGATTCACGTTTTCTTCTTATACGATGAGTTGG GTCCGGCAGGCACCGGGGAAAGGATTGGAATGGGTTGCGTCTATTAGTAGCTC TGGATCTAACACATACTACCCAGACTCAGTTAAAGGTCGCTTCACGATAAGTCGG GACAACGCTAAAAATAACCTGTATTTGCAAATGAACAGCTTGCGAGCTGAGGAC ACCGCCCTCTACTACTGTGCCCGATTTGATTATGGATCAAGTTTGGATTCATGGG GCCAAGGGACCCTGCTCACAGTAAGCTCT VL GAAATCGTTCTTACTCAGTCCCCGGATTTTTTGAGTGTAACGCCTAAAGAGAAGG 450 TGACCCTGTCCTGCCGCGCTTCCCAATCTATATCAAACTATCTTCATTGGTACCAG CAAAAAAGCGACCAGTCCCCGAAACTGCTCATCAAATACGCTAGCCAATCAATA AGCGGCATCCCTAGCAGGTTTTCCGGTAGCGGTAGTGGCACAGACTTCACATTG AGCATAAACAGCGTGGAAGCCGAGGATGCAGCAACATACTTTTGCCAACAGAG CAAGTCCTGGCCGAGGACGTTCGGTGGGGGCACCAAATTGGAAATAAAG C21_Hu21 VH GAGGTCCAACTTGTTGAATCCGGTGGAGGGCTGGTGCAGCCTGGTGGATCCCTC 466 CGCCTTTCCTGTGCAGCATCAGGTTTTACTTTTTCCTCATACACCATGTCTTGGGT TCGCCAGGCTCCAGGGAAAGGATTGGAATGGGTGGCAACTATCAGTAGTAGCG GGGACAATACATACTATCCCGATTCCGTGAAAGGGAGATTTACGATTTCACGCG ACAACAGCAAAAATACCCTTTACCTGCAAATGAGTTCCTTGCGGGCCGAGGACA CTGCCCTCTACTACTGCGCTCGCTTCGATTACGGTTCCAGCCTGGACTCATGGGG TCAAGGGACTACACTGACTGTTTCTTCC VL GAGATCGTGCTCACCCAATCTCCTGACTTCCTTAGCGTTACACCAGGGGAGAAA 482 GTAACTCTTACGTGCCGGGCCTCCCAGAGCATCTCCAATTATTTGCATTGGTACC AGCAAAAGAGTGACCAGAGCCCTAAGCTGCTCATCAAATACGCATCACAGAGTA TTAGCGGCGTTCCCTCACGGTTCTCTGGCTCCGGTTCCGGTACAGACTTCACTTT GACGATTTCAAGTGTAGAGGCCGAGGACTTCGCAACTTACTTTTGTCAGCAAAG CAAATCCTGGCCTCGAACTTTCGGCGGGGGTACAAAACTCGAAATCAAG
(214) TABLE-US-00011 TABLE H Nucleic acid sequences of anti-LG-5 VH and VL regions. SEQ ID LG-5 Chain Nucleotide Sequence NO AN01 VH GAGGTGCAGCTGCAGCAGAGCGGCCCTGAGCTGGTGAAACCTGGCGCCAGCGT 250 GAAGATGAGCTGCAAGGCCAGCGGCTACACCTTCACCAGCTACAACATCCACTG GGTGAAACAGAAGCCCGGCCAGGGCCTGGAATGGATTGGCTACATCAACCCCT ACAACGACGGCACCAAGTACAGCGAGAAGTTCAAGGGCAAGGCCACCCTGACC AGCGACAGAAGCAGCAGCACCGCCTACATGGAAGTGTCCAGCCTGACCTCCGA GGACAGCGCCGTGTACTACTGCGCCATCTACGGCAACAGCTACTGGGGCCAGG GCAGCACCCTGACCGTGTCCAGC VL GACATCGTGATGACCCAGGCTGCCCCCAGCATCCCCGTGACACCTGGCGAGTCC 251 GTGTCCATCAGCTGCAGAAGCAGCAAGAGCCTGCTGCACAGCAACGGCAATACC TACCTGTACTGGTTCCTGCAGCGGCCTGGCCAGTCCCCCCAGCGGCTGATCTACT ACATGAGCAACCTGGACAGCGGCGTGCCCGACCGGTTTAGCGGCAGAGGCAGC GGCACAGACTTTACCCTGCGGATCAGCCGGGTGGAAGCCGAGGACGTGGGCGT GTACTATTGCATGCAGGGCCTGGAATACCCCTACACCTTTGGAGGCGGCACCAA GCTGGAAATCAAG C3 VH GACGTGATGCTGGTCGAGAGCGGCGGAGATCTGGTCAAACCCGGGGGTTCTCT 252 GAAGCTGAGTTGTGCCGCTTCAGGCTTCACTTTTTCTAGTTACACCATGAGCTGG GTGCGACAGACCCCAGAGAAGCGGCTGGAATGGGTCGCTAGCATCTCAAGCGG CGGAGGGAACACCTACTATCCCGACTCTGTGAAAGGCAGATTCACAATTAGTCG CGATAATGCAAAGAACAATCTGTACCTGCAGATGTCCTCTCTGAGGTCCGAAGA TACTGCCCTGTACTATTGTGCTAGATTTGACTATGGAAGTTCACTGGATTCTTGG GGACAGGGGACCACACTGACAGTGAGCTCC VL GACATCGTCCTGACCCAGAGTCCTGCCACCCTGTCTGTGACACCAGGCGATTCTG 253 TCAGTCTGTCATGTAGAGCTAGCCAGTCCATCTCTAACAATCTGCACTGGTACCA GCAGAAGTCACATGAAAGCCCCAGACTGCTGATCAAGTATGCCAGTCAGTCAAT CAGCGGTATTCCTTCCCGCTTCTCCGGCTCTGGAAGTGGGACAGACTTTACTCTG TCCATCAACTCTGTGGAGACAGAAGATTTCGGCATGTATTTTTGTCAGCAGAGCA AGAATTGGCCCAGGACATTTGGCGGAGGGACTAAGCTGGAGATCAAG C21 VH GAAGTGATGCTGGTCGAAAGTGGAGGAGGACTGGTGAAACCAGGTGGAAGCC 254 TGAAGCTGTCCTGTGCCGCTTCTGGCTTCACTTTTTCAAGCTATACCATGAGCTG GGTGCGACAGACACCTGAGAAGCGGCTGGAATGGGTCGCTACAATCTCCTCTG GAGGGGACAACACTTACTATCCAGATAGCGTGAAAGGCAGATTCACTATTTCCC GCGACAATGCAAAGAACAATCTGTACCTGCAGATGAGTTCACTGAGGAGCGAG GATACCGCCCTGTACTATTGCGCTAGATTTGACTATGGAAGCTCCCTGGATTGTT GGGGACAGGGGACCACACTGACCGTGTCTAGT VL GACATCGTCCTGACTCAGAGCCCTGCCACCCTGTCCGTGACACCAGGCGATTCA 255 GTCAGCCTGTCCTGTAGAGCTTCTCAGAGTATCTCAAACTACCTGCACTGGTATC AGCAGAAGAGTCATGAATCACCCAGACTGCTGATCAAGTACGCCAGCCAGTCCA TCTCTGGGATTCCTAGCCGCTTCAGTGGCTCAGGAAGCGGGACAGACTTTACTCT GAGCATCAATTCCGTGGAGACAGAAGATTTCGGCATGTATTTTTGTCAGCAGTC CAAGTCTTGGCCCAGGACATTTGGCGGAGGGACTGAGCTGGAGATCAAG TLF39 VH GAGGTGCAACTGGTGCAGTCTGGAGCAGAGGTGAAAAAGCCCGGGGAGTCTCT 256 GAAGATCTCCTGTAAGGGTTCTGGATACAGCTTTACCAGCTACTGGATCGGCTG GGTGCGCCAGATGCCCGGGAAAGGCCTGGAGTGGATGGGGATCATCTATCCTG GTGACTCTGATACCAGATACAGCCCGTCCTTCCAAGGCCAGGTCACCATCTCAGC CGACAAGTCCATCAGCACCGCCTACCTGCAGTGGAGCAGCCTGAAGGCCTCGGA CACCGCCATGTATTACTGTGCGAGACGCGGGTATCGCAGCAGCTGGTACTTTGA CTACTGGGGCCAGGGAACCCTGGTCACCGTCTCCTCA VL GCCATCCAGATGACCCAGTCTCCATCCTCCCTGTCTGCATCTGTAGGAGACAGAG 257 TCACCATCACTTGCCGGGCAAGTCAGGGCATTAGAAATGATTTAGGCTGGTATC AGCAGAAACCAGGGAAAGCCCCTAAGCTCCTGATCTATGCTGCATCCAGTTTAC AAAGTGGGGTCCCATCAAGGTTCAGCGGCAGTGGATCAGGCACAGATTTCACTT TCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAACTTATTACTGTCTACAAGA TTACAATTACCCGCTCACTTTCGGCGGAGGGACCAAGGTGGAGATCAAA TLF86 VH GAGGTGCAGCTGGTGGAGTCTGGGGGAGGTGTGGTACGGCCGGGGGGGTCCC 258 TGAGACTCTCCTGTGCAGCCTCTGGATTCACCTTTGATGATTATGGCATGAGCTG GGTCCGCCAAGCTCCAGGGAAGGGGCTGGAGTGGGTCTCTGGTATTAATTGGA ATGGTGGTAGCACAGGTTATGCAGACTCTGTGAAGGGCCGATTCACCATCTCCA GAGACAACGCCAAGAACTCCCTGTATCTGCAAATGAACAGTCTGAGAGCCGAG GACACGGCCTTGTATCACTGTGCGAGAGAAGGGGGGGAGCTATTAATGGACTA TTGGGGCCAGGGAACCCTGGTCACCGTCTCCTCA VL GAAATTGTGTTGACACAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 259 GCCACCCTCTCCTGCAGGGCCAGTCAGAGTGTTAGCACCTACTTAGCCTGGTACC AACAGAAACCTGGCCAGGCTCCCAGGCTCCTCATCTATGATGCATCCAACAGGG CCACTGGCATCCCACCCAGGTTCAGTGGCAGTGGGTCTGGGACAGACTTCACTC TCACCATCAGCAGCCTAGAGCCTGAAGATTTTGCAGTTTATTACTGTCAGCAGCG TAGCAACTGGCCTCCTACTTTCGGCGGAGGGACCACGGTGGAGATCAAA
(215) TABLE-US-00012 TABLE I Nucleic acid sequences of anti-LG-4/5 VH and VL regions. SEQ LG- ID 4/5 Chain Nucleotide Sequence NO CL- VH GAAGTTCAATTGTTAGAGTCTGGTGGCGGTCTTGTTCAGCCTGGTGGTTCTTTAC 260 40968 GTCTTTCTTGCGCTGCTTCCGGATTCACTTTCTCTCATTACTCTATGGTTTGGGTTC GCCAAGCTCCTGGTAAAGGTTTGGAGTGGGTTTCTTATATCTATCCTTCTGGTGG CACTTCGTATGCTGACTCCGTTAAAGGTCGCTTCACTATCTCTAGAGACAACTCT AAGAATACTCTCTACTTGCAGATGAACAGCTTAAGGGCTGAGGACACGGCCGTG TATTACTGTGCGAGACATTGGCGGGGGTATAGCAGCAGCTGGTACCACCCGGC GTACTTTGACTACTGGGGCCAGGGCACCCTGGTCACCGTCTCAAGC VL GACATCCAGATGACCCAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 261 GCCACCCTCTCCTGCAGGGCCAGTCAGAGTGTTAGCAGCTACTTAGCCTGGTAC CAACAGAAACCTGGCCAGGCTCCCAGGCTCCTCATCTATGATGCATCCAACAGG GCCACTGGCATCCCAGCCAGGTTCAGTGGCAGTGGGTCTGGGACAGACTTCACT CTCACCATCAGCAGCCTAGAGCCTGAAGATTTTGCAGTTTATTACTGTCAGCAGC GTAGCAACTGGCCTCTCACTTTCGGCGGAGGGACCAAGGTGGAGATCAAA CL- VH GAAGTTCAATTGTTAGAGTCTGGTGGCGGTCTTGTTCAGCCTGGTGGTTCTTTAC 262 40992 GTCTTTCTTGCGCTGCTTCCGGATTCACTTTCTCTTGGTACCCTATGATGTGGGTT CGCCAAGCTCCTGGTAAAGGTTTGGAGTGGGTTTCTTCTATCTATCCTTCTGGTG GCACTACTACTTATGCTGACTCCGTTAAAGGTCGCTTCACTATCTCTAGAGACAA CTCTAAGAATACTCTCTACTTGCAGATGAACAGCTTAAGGGCTGAGGACACGGC CGTGTATTACTGTGCGAGGTCGTATTACTATGATAGTAGTGGTTATTACTCACAT GATGCTTTTGATATCTGGGGCCAAGGGACAATGGTCACCGTCTCAAGC VL GACATCCAGATGACCCAGTCTCCATCCTCCCTGTCTGCATCTGTGGGAGACAGA 263 GTCGCCATCACTTGCCGCGCAAGTCAGAGCATCGACACCTATTTAAATTGGTATC AGCAGAAACCAGGGAAAGCCCCTAAACTCCTGATCTATGCTGCATCCAAGTTGG AAGACGGGGTCCCATCAAGATTCAGTGGCAGTGGAACTGGGACAGATTTCACTC TCACCATCAGAAGTCTGCAACCTGAAGATTTTGCAAGTTATTTCTGTCAACAGAG CTACTCTAGTCCAGGGATCACTTTCGGCCCTGGGACCAAGGTGGAGATCAAA CL- VH GAAGTTCAATTGTTAGAGTCTGGTGGCGGTCTTGTTCAGCCTGGTGGTTCTTTAC 264 41136 GTCTTTCTTGCGCTGCTTCCGGATTCACTTTCTCTGATTACGAGATGCATTGGGTT CGCCAAGCTCCTGGTAAAGGTTTGGAGTGGGTTTCTTCTATCTGGCCTTCTGGTG GCCTTACTAAGTATGCTGACCCCGTTAAAGGTCGCTTCACTATCTCTAGAGACAA CTCTAAGAATACTCTCTACTTGCAGATGAACAGCTTAAGGGCTGAGGACACGGC CGTGTATTACTGTGCGAGAGATTCCTATTACTATGATAGTAGTGGTGCTCTTGGC TACTGGGGCCAGGGAACCCTGGTCACCGTCTCAAGC VL GACATCCAGATGACCCAGTCTCCTTCCACCCTGTCTGCATCTGTAGGAGACAGAG 265 TCACCATCACTTGCCGGGCCAGTCAGAGTGTTAGTAACTGGTTGGCCTGGTATC AGCAGAAACCAGGGAAAGCCCCTAAGCTCCTGATCTATAAGGCGTCTAGTTTAG AAAGTGGGGTCCCATCGAGGTTCAGCGGCAGTGGATCTGGGACAGAATTCACT CTCACCATCAGCAGCCTGCAGCCTGATGATTTTGCAACTTATTACTGCCTACAGT ATGTGAGTTATCCCCTCACTTTTGGCGGAGGGACCAAGGTGGACATCAAA CL- VH GAAGTTCAATTGTTAGAGTCTGGTGGCGGTCTTGTTCAGCCTGGTGGTTCTTTAC 266 41400 GTCTTTCTTGCGCTGCTTCCGGATTCACTTTCTCTTATTACGATATGTATTGGGTT CGCCAAGCTCCTGGTAAAGGTTTGGAGTGGGTTTCTCGTATCTATTCTTCTGGTG GCCATACTTGGTATGCTGACTCCGTTAAAGGTCGCTTCACTATCTCTAGAGACAA CTCTAAGAATACTCTCTACTTGCAGATGAACAGCTTAAGGGCTGAGGACACGGC TGTGTATTACTGTGCGAGGCCCGGGTATAGCAGTGGCTGGTACGATGGCACCTA CTTTGACTACTGGGGCCAGGGAACCCTGGTCACCGTCTCAAGC VL GACATCCAGATGACCCAGTCTCCTTCCACCCTGTCTGCATCTGTTGGCGACAGAG 267 TCACCATTACTTGTCGGGCCAGTCAGAGTATTGATACTTGGCTGGCCTGGTATCG GCAGAAACCAGGGAAAGCCCCTAATGTCGTAATTCATTCCGCGTCTACTTTACAA AGTGGCGTCCCCGCAAGGTTCAGCGGCAGTGGATTTGGGACAGAATGGACTCT CACTATCACCAACCTGCAGCCTGATGATTTTGCCACCTATTATTGCCAACAATATA AGACTTATCCGTTCACTTTTGGCCAGGGGACGAAGCTGGAGATCAAG CL- VH GAAGTTCAATTGTTAGAGTCTGGTGGCGGTCTTGTTCAGCCTGGTGGTTCTTTAC 268 41500 GTCTTTCTTGCGCTGCTTCCGGATTCACTTTCTCTCATTACCAGATGGAGTGGGTT CGCCAAGCTCCTGGTAAAGGTTTGGAGTGGGTTTCTTCTATCTCTCCTTCTGGTG GCTTTACTTCTTATGCTGACTCCGTTAAAGGTCGCTTCACTATCTCTAGAGACAAC TCTAAGAATACTCTCTACTTGCAGATGAACAGCTTAAGGGCTGAGGACACAGCC GTGTATTACTGTACGAGAGAGCCGGGGAGGTTGTGGGCTTTTGATATCTGGGG CCAAGGGACAATGGTCACCGTCTCAAGC VL GACATCCAGATGACCCAGTCTCCATCTTTCGTGTCTGCATCTGTCGGAGACAGAG 269 TCACCATCACTTGCCGGGCGAGTCAGGATATTCGTAATTGGCTAGCCTGGTATCA ACAGGAGTCCGGGAAAGCCCCTCGGCTCCTGATCTCTGCTGCATCCAGTAGGCA CAGTGGCGTCTCATCTAGATTCAGCGGCAGTGGATCTGGGACAGACTTCACCCT CACCATCACCAGTCTGCAGCCTGAAGATTCAGCAACTTATTTTTGTCAACAGGCT GACAGTTCCCCTCGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA TLG3/ VH CAGGTGCAACTGGTGCAGTCTGGGGCTGAGGTGAAGAAGCCTGGGGCCTCAGT 270 TLG4 GAAGGTCTCCTGCAAGGCTTCTGGATACACCTTCACCGGCTACTATATGCACTGG GTGCGACAGGCCCCTGGACAAGGGCTTGAGTGGATGGGATGGATCAACCCTAA CAGTGGTGGCACAAACTATGCACAGAAGTTTCAGGGCAGGGTCACCATGACCA GGGACACGTCCATCAACACAGCCTACATGGAACTGAGCAGGCTGAGATCTGAC GACACGGCCGTGTATTACTGTGCGGTCTTTGGTTCGGGGAGTTCTTGGGGCCAG GGAACCCTGGTCACCGTCTCCTCA VL GACATCCAGATGACCCAGTCTCCATCCTCACTGTCTGCATCTGTGGGAGACAGA 271 GTCACCATCACTTGTCGGGCGAGTCAGGGTATTAGCAATTCTTTAGCCTGGTTTC AGCAGAAACCAGGGAAAGCCCCTAAGTCCCTGATCTATGCTGCATCCAGTTTGC AAAGTGGGGTCCCATCAAAGTTCAGCGGCAGTGGATCTGGGACAGATTTCACTC TCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAACTTATTACTGCCAACAATA TAAGAGTTACCCGTACACATTTGGCCAGGGGACCAAGCTGGAGATCAAA TLG26 VH CAGGTGCAGCTGGTGCAGTCTGGGGCTGAGGTGAAGAAGCCTGGGGCCTCAGT 272 GAAGGTCTCCTGCAAGGCTTCTGGAAACACCTTCACCGGCTACTATATACACTGG GTTCGACAGGCCCCTGGACAAGGGCTTGAGTGGATGGGATGGATTAAACCTAG TACTGGTGACACAAACTATGCACAGAATTTTCTGGACAGGGTCACCATGACCAG GGACACGTCCATCAGCACAGCCTACATGGAACTCAGCAGGCTGAGATCTGACGA CACGGCCGTGTATTACTGTGCGGTCTTTGGTTCGGGGAGTTCTTGGGGCCAGGG AACCCTGGTCACCGTCTCCTCA VL GACATCCACATGACCCAGTCTCCATCCTCACTGTCTGCATTTGTAGGAGACAGAG 273 TCACCATCACTTGTCGGGCGAGTCAGGGCATTAGCAATTATTTAGCCTGGTTTCA GCAGAAACCAGGGAAAGCCCCTAAGTCCCTGATCTATGCTGCATCCAGTTTGCA AAGTGGGGTCCCATCAAAGTTCAGCGGCAGTGGATCTGGGACAGATTTCACTCT CACCATCAACAACCTGCAGCCTGAAGATTTTGCAACTTATTACTGCCAACAGTAT AAGACTTACCCGTACACATTTGGCCAGGGGACCAAGCTGGAGATCAAA TLI-3 VH CAGGTGCAGCTGGTGGAGTCTGGGGGAGGCGTGGTCCAGCCTGGGAGGTCCCT 274 GAGACTCTCCTGTGCAGCGTCTGGATTCACCTTCAGTAGCTATGGCATGCACTGG GTCCGCCAGGCTCCAGGCAAGGGGCTGGAGTGGGTGGCAGTTATATGGTATGA TGGAAGTAATAAATACTATGCAGACTCCGTGAAGGGCCGATTCACCATCTCCAG AGACAATTCCAAGAACACGCTGTATCTGCAAATGAACAGTCTGAGAGCCGAGGA CGCGGCTGTGTATTACTGTGCGAGAGAAGGTGGCTGGTACGGCGGGGACTACT ACTACGGTATGGACGTCTGGGGCCAAGGGACCACGGTCACCGTCTCCTCA VL GCCATCCAGTTGACCCAGTCTCCATCCTCCCTGTCTGCATCTGTAGGAGACAGAG 275 TCACCATCACTTGCCGGGCAAGTCAGGGCATTAGCAGTGCTTTAGCCTGGTATC AGCAGAAACCAGGGAAAGCTCCTAAGCTCCTGATCTATGATGCCTCCAGTTTGG AAAGTGGGGTCCCATCAAGGTTCAGCGGCAGTGGATCTGGGACAGATTTCACTC TCACCATCAGCAGCCTGCAGCCTGAAGATTTTGCAACTTATTACTGTCATCAGTTT AATAATTACCCATTCACTTTCGGCCCTGGGACCAAAGTGGATATCAAA TLI-7 VH GAAGTGCAGCTGCTGGAATCTGGCGGCGGACTGGTGCAGCCTGGCGGATCTCT 276 GAGACTGTCCTGTGTGGCCTCCGGCTTCACCTTCTCCAGCTACGCCATGTCCTGG GTGCGACAGGCTCCTGGCAAGGGCCTGGAATGGGTGTCCGGCATCTCTGGCAG GGGCGGCTCTCCTAACTACGCCGACTCTGTGAAGGGCCGGTTCACCATCTCCCG GGACAACTCCAAGAACACCCTGTACCTCCAGATGAACTCCCTGCGGGCCGAGGA CACCGCCGTGTACTACTGTGCTAAGGACGGCGACGGCTCCGGCCCTCCCTACTA CTTTGATTACTGGGGCCAGGGCACCCTCGTGACCGTGTCATCT VL GACATCCAGATGACCCAGTCCCCCTCCAGCCTGTCTGCCTCTGTGGGCGACAGA 277 GTGACCATCACCTGTCGGGCCTCCCAGGGCATCTCTTCTTGGCTGGCCTGGTATC AGCAGAAGCCCGAGAAGGCCCCCAAGTCCCTGATCTACGCCGCCAGCTCTCTCC AGTCTGGCGTGCCCTCCAGATTCTCCGGCTCTGGCTCTGGCACCGACTTTACCCT GACCATCAGCTCCCTCCAGCCCGAGGACTTCGCCACCTACTACTGCCAGCAGTAC AACTCCTACCCCTACACCTTCGGCCAGGGCACCAAGCTGGAAATCAAG TTLK71- VH CAGGTGCAGCTGATGGAGTCTGGGGGAGGCGTGGTCCAGCCTGGGAGGTCCCT 278 4-6 GAGACTCTCCTGTGCAGCGTCTGGATTCACCTTCAGTGGCTATGGCATGCACTG GGTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGGTGGCAGTTATATGGTCTG ATGGAAGTAATAGATACTATACAGACTCCGTGAAGGGCCGATTCACCATCTCCA GAGACAATTCCAAGAACACGCTGTCTCTGCAAATGAACAGCCTGAGAGCCGAG GACACGGCTGTGTATTACTGTGCGAGAGATAGGGGGATTACTATGGTTCGGGG ACTTATTATAAAATACTACTACTACTACGGTTTGGACGTCTGGGGCCAAGGGACC TCGGTCACCGTCTCCTCA VL GAAATTGTGTTGACACAGTCTCCAGCCACCCTGTCTTTGTCTCCAGGGGAAAGA 279 GCCACCCTCTCCTGCAGGGCCAGTCAGAGTGTTAGCAGCTACTTAGCCTGGTAC CAACAGAAACCTGGCCAGGCTCCCAGGCTCCTCATCTATGATGCATCCAACAGG GCCACTGGCATCCCAGCCAGGTTCAGTGGCAGTGGGTCTGGGACAGACTTCACT CTCACCATCAGCAGCCTAGAGCCTGAAGATTTTGCAGTTTATTACTGTCAGCAGC GTAGCAACTGGTGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA TTLK123- VH CAGGTGCAGCTGGTGGAGTCTGGGGGAGGCGTGGTCCAGCCTGGGAGGTCCCT 280 3 GAGACTCTCCTGTGCAGCGTCTGGATTCACCTTCAGTAGCTTTGGCATGCACTGG GTCCGCCAGGCTCCAGGCAAGGGGCTGGAGTGGGTGGCAGTTATATACTATGA TGGAAGTAATAAATACTATGCAGACTCCGTGAAGGGCCGATTCACCATCTCCAG AGACAATTCCAAGAACACGCTGTATCTGCAAATGAACAGCCTGAGAGCCGAGG ACACGGCTGTGTATTACTGTGCGAGAGATGACAACTGGAACGACGGGGACTTT GACTACTGGGGCCAGGGAACCCTGGTCACCGTCTCCTCA VL GACATCCAGTTGACCCAGTCTCCATCCTTCCTGTCTGCATCTGTAGGAGACAGAG 281 TCACCATCACTTGCCGGGCCAGTCAGGGCATTAGTAGTTATTTAGCCTGGTATCA GCAAAAACCAGGGAAAGCCCCTAAGCTCCTGATCTATGCTGCATCCACTTTGCAA AGTGGGGTCCCATCAAGGTTCAGCGGCAGTGGATCTGGGACAGAATTCACTCTC ACAATCAGCAGCCTGCAGCCTGAAGATTTTGCAACTTATTACTGTCAACAGCTTA ATAGTTACCCTCGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA TTLK145- VH GAGGTGCAGCTGTTGGAGTCTGGGGGAGGCTTGGTACAGCCTGGGGAGTCCCT 282 6-3 GAGACTCTCCTGTGCAGCCTCTGGATTCACCTTTAACAGATTTGTCATGAGTTGG GTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGGTCTCAACTATTAGTGGTAG TGGTGGTAGCACATACTACGCAGACTCCGTGAAGGGCCGGTTCACCATCTCCAG AGACAATTCCAAGAACACGCTGTATCTGCAAATGAACAGCCTGAGAGCCGAGG ACACGGCCGTGTATTACTGTGCGAAAGATTTTACGTATTACTATGGTTCGGGGA ATTATTATAACTGGTTCGACCCCAGGGGCCAGGGAACCCTGGTCACCGTCTCCTC A VL GACATCCAGATGACCCAGTCTCCTTCCACCCTGTCTACATCTGTAGGAGACAGAG 283 TCACCATCACTTGCCGGGCCAGTCAGAGTATTAGTAGCTGGTTGGCCTGGTATC AGCAGAAACCAGGGAAAGCCCCTAAGCTCCTGATCTATAAGGCGTCTAGTTTAG AAAGTGGGGTCCCATCAAGGTTCAGCGGCAGTGGATCTGGGACAGAATTCACT CTCACCATCAGCAGCCTGCAGCCTGATGATTTTGCAACTTATTACTGCCAACAGT ATAATAGTTATTCTCGGACGTTCGGCCAAGGGACCAAGGTGGAAATCAAA TTLK170- VH CAGGTGCAGCTACAGCAGTGGGGCGCAGGACTGTTGAAGCCTTCGGAGACCCT 284 2 GTCCCTCACCTGCGCTGTCTATGGTGGGTCCTTTAGTGGTTACTACTGGAGCTGG ATCCGCCAGCCCCCAGGGAAGGGGCTGGAGTGGATTGGGGAAATCAATCATAG TGGAGGCACCAACTACAACCCGTCCCTCAAGAGTCGAGTCACCATATCAGTAGA CACGTCCAAGAACCACTTCTCCCTGAAGCTGAGCTCTGTGACCGCCGCGGACAC GGCTGTGTATTACTGTGCGAGAACTAGTGACTACGATTACTACTACTACGGTATG GACGTCTGGGGCCAAGGGACCACGGTCACCGTCTCCTCA VL CAGCCTGTGCTGACTCAGCCAACTTCCCTCTCAGCATCTCCTGGAGCATCAGCCA 285 GACTCACCTGCACCTTGCGCAGTGGCATCAATCTTGGTCGCTACAGGATATTCTG GTACCAGCAGAAGCCAGAGAGCCCTCCCCGGTATCTCCTGAGCTACTACTCAGA CTCAAGTAAGCATCAGGGCTCTGGAGTCCCCAGCCGCTTCTCTGGATCCAAAGA TGCTTCGAGCAATGCAGGGATTTTAGTCATCTCTGGGCTCCAGTCTGAGGATGA GGCTGACTATTACTGTATGATTTGGCACAGGAGTGCTTTGTTTATTTTCGGCAGT GGAACCAAGGTCACTGTCCTA WJL10 VH CAGGTTCAGCTACAGCAGTCTGGACCTGAGCTGGTGAAGCCTGGGGCTTCAGTG 286 AAGTTGTCCTGCAAGGCTTCTGGTTACACCTTCACAAGCTACGAGATAAACTGGT TGAAGCAGAGGCCTGGACAGGGACTTGAGTGGATTGGATTGATTTATCCTAGA GATGGAGATACTAAGTACAATGAGAAGTTCAAGGGCAAGGCCACATTGACTGC AGACACATCCTCCAGCACAGCGTACATGGAGCTCCACAGCCTGACATCTGAGGA CTCTGCGGTCTATTTCTGTGCAAGACACACCCCAGGGGCTTTCTGGGGCCAAGG GACTCTGGTCACTGTCTCTGCA VL GATGTTGTGATGACCCAAACTCCCCTCTCCCTGCCGGTCAGTCTTGGAGATCAAG 287 CCTCCATCTCTTGCAGATCTAGTCAGAGCCTTGTTCACAGTAATGGAGACACCTA TTTACATTGGTACCTACAGAAGCCAGGCCAGTCTCCAAAGCTCCTGATCTACAAA GTTTCCAACCGATTTTCTGGGGTCCCAGACAGGTTCAGTGGCAGTGGATCAGGG ACAGATTTCACACTCAAGATCAGCAGAGTGGAGGCTGAGGATCTGGAAATTTAT TTCTGCTCTCAAAGCACACATGTTCCGTACACGTTCGGAGGGGGGACCAAACTG GAAATAAAA WJL48 VH GACGTGAAGCTGGTGGAGTCTGGGGAAGGCTTAGTGAAGCCCGGAGGGTCCCT 288 GAAACTCTCTTGTGCAGCCTCTGGATTCACTTTCAGTAGGTATGCCATGTCTTGG GTTCGCCAGACTCCAGAAAAGAGGCTGGAATGGGTCGCATATATTAGTAGTGG AGGTGATTACATCCACTATGGAGAAACTGTGAAGGGCCGATTCACCATCTCCAG AGACAATGCCAGGAACACCCTGTACCTGCAAATGAGCAGTCTGAAGTCTGAGGA CACAGCCATGTATTACTGTACAAGAGTTCTCTTTTATTATTACGGCAGTAGCTAC GTCTTTTTTGACTACTGGGGCCAAGGCACCACTCTCACAGTCTCCTCA VL GATATCCAGATGACACAGACTACATCCTCCCTGTCAGTCTCTCTGGGAGACAGA 289 GTCACCATCAGTTGCAGGGCAAGTCAGGACATCAGCAATTTTCTAAACTGGTAT CAGCAGAAACCAGATGGAACTGTTAATCTCCTGATCTACTACACATCAAAATTAC ACTCAGGAGTCCCATCAAGGTTCAGTGGCGGTGGGTCTGGAAGAGATTATTCTC TCACCATTAATAACCTGGAGCAAGAAGATATTGCCTCTTACTTTTGCCAACAGGG TCATACGCTTCCGTATACGTTCGGAGGGGGGACCAAGCTGGAAATAAAA
(216) TABLE-US-00013 TABLE 12 Amino acid sequences of humanized, multispecific binding proteins. SEQ ID Name Chain Sequence NO 3407 I EIVLTQSPDFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSISGIPSR 500 FSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTEIVLTQSP DFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSISGIPSRFSGSGSG TDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTRTVAAPSVFIFPPSDE QLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTL SKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC II EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGSN 498 TYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGTLLT VSSDKTHTEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVA SISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSW GQGTLLTVSSDKTHTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSG ALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCD KTHTCPPCPAPELLGGPSVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISK AKGQPREPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTP PVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG III QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSGN 499 FYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVSSAS TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSG LYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGP SVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQY NNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVCTLPPS RDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTV DKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG IV DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSSRF 501 SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVAAPS VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDST YSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC 3423 I EIVLTQSPDFLSVTPKEKVTLSCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGIPSRF 504 SGSGSGTDFTLSINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTEIVLTQSPD FLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSISGIPSRFSGSGSGT DFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTRTVAAPSVFIFPPSDE QLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTL SKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC II EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGSN 502 TYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGTLLT VSSDKTHTEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVA SISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSW GQGTLLTVSSDKTHTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSG ALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCD KTHTCPPCPAPELLGGPSVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISK AKGQPREPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTP PVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG III QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSGN 503 FYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVSSAS TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSG LYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGP SVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQY NNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVCTLPPS RDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTV DKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG IV DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSSRF 505 SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVAAPS VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDST YSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC 3429 I EIVLTQSPDFLSVTPGEKVTLTCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGVPSR 508 FSGSGSGTDFTLTISSVEAEDFATYFCQQSKSWPRTFGGGTKLEIKDKTHTEIVLTQSPD FLSVTPKEKVTLTCRASQSIGNNLHWYQQKSDQSPKLLIKYASQSISGIPSRFSGSGSGT DFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTRTVAAPSVFIFPPSDE QLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTL SKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC II EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGSN 506 TYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGTLLT VSSDKTHTEVQLVESGGGLVQPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWV ATISSSGDNTYYPDSVKGRFTISRDNSKNTLYLQMSSLRAEDTALYYCARFDYGSSLDS WGQGTTLTVSSDKTHTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWN SGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKS CDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWY VDGVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTI SKAKGQPREPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKT TPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG III QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSGN 507 FYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVSSAS TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSG LYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGP SVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQY NNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVCTLPPS RDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTV DKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG IV DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSSRF 509 SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVAAPS VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDST YSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC 3437 I EIVLTQSPDFLSVTPKEKVTLTCRASQSIGNNLHWYQQKSDQSPKLLIKYASQSISGIPSR 512 FSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTEIVLTQSP DFLSVTPKEKVTLSCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGIPSRFSGSGSGT DFTLSINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTRTVAAPSVFIFPPSDE QLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTL SKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC II EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGSN 510 TYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGTLLT VSSDKTHTEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVA SISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSW GQGTLLTVSSDKTHTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSG ALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCD KTHTCPPCPAPELLGGPSVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISK AKGQPREPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTP PVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG III QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSGN 511 FYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVSSAS TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSG LYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGP SVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQY NNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVCTLPPS RDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTV DKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG IV DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSSRF 513 SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVAAPS VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDST YSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC 3439 I EIVLTQSPDFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSISGIPSR 516 FSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKDKTHTEIVLTQSP DFLSVTPGEKVTLTCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGVPSRFSGSGSG TDFTLTISSVEAEDFATYFCQQSKSWPRTFGGGTKLEIKDKTHTRTVAAPSVFIFPPSDE QLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTL SKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC II EVQLVESGGGLVQPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVATISSSGDN 514 TYYPDSVKGRFTISRDNSKNTLYLQMSSLRAEDTALYYCARFDYGSSLDSWGQGTTLTV SSDKTHTEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVAS ISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSW GQGTLLTVSSDKTHTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSG ALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCD KTHTCPPCPAPELLGGPSVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISK AKGQPREPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTP PVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG III QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSGN 515 FYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVSSAS TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSG LYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPAPELLGGP SVFLFPPKPKDTLYITREPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAKTKPREEQY NNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPREPQVCTLPPS RDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSDGSFFLVSKLTV DKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG IV DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSSRF 517 SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVAAPS VFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDST YSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(217) TABLE-US-00014 TABLE 13 Amino acid sequences of humanized, bispecific binding proteins. SEQ ID Name Chain Sequence NO AS30_Hu6 × HC1 QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 518 C3_Hu10 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS Duobody SASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAV LQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCPPCPA PELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNA KTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPR EPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDSD GSFFLYSRLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG HC2 EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGS 519 NTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGT LLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHT FPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCP PCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEV HNAKTKPREEQYNNSARVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAK GQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPP VLDSDGSFLLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG LC1 DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSS 520 RFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVA APSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQD SKDSTYSLSSTLTLSKADYEKHKVYACEVTHUGLSSPVTKSFNRGEC LC2 EIVLTQSPDFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYASQSISGIPS 521 RFSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKRTVAAPSVFIF PPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYS LSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC AS30_Hu6 × HC1 QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 524 C21_Hu11 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS Duetmab SASTKGPSVCPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAV LQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSVDKTHTCPPCPA PE LLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNA KTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQPR EPQVYTLPPCRDELTKNQVSLWCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLDS DGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG HC2 EVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSSGS 525 NTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQGT LLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHT FPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHTCP PCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEV HNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAK GQPREPQVCTLPPSRDELTKNQVSLSCAVKGFYPSDIAVEWESNGQPENNYKTTPP VLDSDGSFFLVSKLTVDKSRWQQGNVFSCSVMHEALHNRFTQKSLSLSPG LC1 DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSS 526 RFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKRTVA APSVFIFPPCDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQD SKDSTYSLSSTLTLSKADYEKHKVYACEVTHUGLSSPVTKSFNRGEV LC2 EIVLTQSPDFLSVTPKEKVTLSCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGIPS 527 RFSGSGSGTDFTLSINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKRTVAAPSVFIF PPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYS LSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC AS30_Hu6 × HC QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 522 C3_Hu10 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS TBTI SGGGGSGGGGSEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKG LEWVASISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDY GSSLDSWGQGTLLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVS WNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKK VEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPE VKFNWYVDGVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNK ALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESN GQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQK SLSLSPG LC DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSS 523 RFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKGGG GSGGGGSEIVLTQSPDFLSVTPKEKVTLTCRASQSISNNLHWYQQKSDQSPKLLIKYA SQSISGIPSRFSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKRTV AAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQ DSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC AS30_Hu6 × HC QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 528 C21_Hu11 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS TBTI SGGGGSGGGGSEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKG LEWVASISSSGSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDY GSSLDSWGQGTLLTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVS WNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKK VEPKSCDKTHTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPE VKFNWYVDGVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNK ALPAPIEKTISKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESN GQPENNYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQK SLSLSPG LC DVVMTQTPLSLSVTPGQPASISCKSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSS 529 RFSGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGQGTKLEIKGGG GSGGGGSEIVLTQSPDFLSVTPKEKVTLSCRASQSISNYLHWYQQKSDQSPKLLIKYA SQSISGIPSRFSGSGSGTDFTLSINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKRTV AAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQ DSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC AS30_Hu9 × HC QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 530 C3_Hu11 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS CODV SSEVQLVESGGGLVKPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVASISSS GSNTYYPDSVKGRFTISRDNAKNNLYLQMNSLRAEDTALYYCARFDYGSSLDSWGQ GTLLTVSSRTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTS GVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKT HTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTI SKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG LC EIVLTQSPDFLSVTPKEKVTLTCRASQSIGNNLHWYQQKSDQSPKLLIKYASQSISGIP 531 SRFSGSGSGTDFTLTINSVEAEDAATYFCQQSKSWPRTFGGGTKLEIKGQPKAAPDV VMTQTPLSLSVTPGQPASISCRSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSNRF SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGAGTKLEIKTKGPSR TVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVT EQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC AS30_Hu9 × HC QVQLVQSGAEVVKPGSSVKVSCEASGFTFTDSVITWVRQRPGQGLEWIGEIYPGSG 532 C21_Hu21 NFYYNEKFQGRVTITADKSTSTAYMELSSLRSEDTAVYFCAMRRSSWGQGTLVTVS CODV SSEVQLVESGGGLVQPGGSLRLSCAASGFTFSSYTMSWVRQAPGKGLEWVATISSS GDNTYYPDSVKGRFTISRDNSKNTLYLQMSSLRAEDTALYYCARFDYGSSLDSWGQ GTTLTVSSRTASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTS GVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKT HTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVD GVEVHNAKTKPREEQYNNASRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTI SKAKGQPREPQVYTLPPSRDELTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPG LC EIVLTQSPDFLSVTPGEKVTLTCRASQSISNYLHWYQQKSDQSPKLLIKYASQSISGVP 533 SRFSGSGSGTDFTLTISSVEAEDFATYFCQQSKSWPRTFGGGTKLEIKGQPKAAPDV VMTQTPLSLSVTPGQPASISCRSSQTIVHSNSKTYLEWYLQKPGQSPQLLIYKVSNRF SGVPDRFSGSGSGTDFTLKISRVEAEDVGVYYCFQGSHVPLTFGAGTKLEIKTKGPSR TVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVT EQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRG EC
(218) TABLE-US-00015 TABLE 14 Amino acid and DNA sequences of humanized, multispecific and bispecific binding proteins. SEQ ID DNA/ NO Binding Protein Chain Sequence Protein 306 AS30SS_Hu6 VH VH domain DNA 307 AS30SS_Hu6 VH FW1 DNA 308 AS30SS_Hu6 VH CDR-H1 DNA 309 AS30SS_Hu6 VH FW2 DNA 310 AS30SS_Hu6 VH CDR-H2 DNA 311 AS30SS_Hu6 VH FW3 DNA 312 AS30SS_Hu6 VH CDR-H3 DNA 313 AS30SS_Hu6 VH FW4 DNA 314 AS30SS_Hu6 VH VH domain protein 315 AS30SS_Hu6 VH FW1 protein 316 AS30SS_Hu6 VH CDR-H1 protein 317 AS30SS_Hu6 VH FW2 protein 318 AS30SS_Hu6 VH CDR-H2 protein 319 AS30SS_Hu6 VH FW3 protein 320 AS30SS_Hu6 VH CDR-H3 protein 321 AS30SS_Hu6 VH FW4 protein 322 AS30SS_Hu6 VL VL domain DNA 323 AS30SS_Hu6 VL FW1 DNA 324 AS30SS_Hu6 VL CDR-L1 DNA 325 AS30SS_Hu6 VL FW2 DNA 326 AS30SS_Hu6 VL CDR-L2 DNA 327 AS30SS_Hu6 VL FW3 DNA 328 AS30SS_Hu6 VL CDR-L3 DNA 329 AS30SS_Hu6 VL FW4 DNA 330 AS30SS_Hu6 VL VL domain protein 331 AS30SS_Hu6 VL FW1 protein 332 AS30SS_Hu6 VL CDR-L1 protein 333 AS30SS_Hu6 VL FW2 protein 334 AS30SS_Hu6 VL CDR-L2 protein 335 AS30SS_Hu6 VL FW3 protein 336 AS30SS_Hu6 VL CDR-L3 protein 337 AS30SS_Hu6 VL FW4 protein 338 AS30SS_Hu9 VH VH domain DNA 339 AS30SS_Hu9 VH FW1 DNA 340 AS30SS_Hu9 VH CDR-H1 DNA 341 AS30SS_Hu9 VH FW2 DNA 342 AS30SS_Hu9 VH CDR-H2 DNA 343 AS30SS_Hu9 VH FW3 DNA 344 AS30SS_Hu9 VH CDR-H3 DNA 345 AS30SS_Hu9 VH FW4 DNA 346 AS30SS_Hu9 VH VH domain protein 347 AS30SS_Hu9 VH FW1 protein 348 AS30SS_Hu9 VH CDR-H1 protein 349 AS30SS_Hu9 VH FW2 protein 350 AS30SS_Hu9 VH CDR-H2 protein 351 AS30SS_Hu9 VH FW3 protein 352 AS30SS_Hu9 VH CDR-H3 protein 353 AS30SS_Hu9 VH FW4 protein 354 AS30SS_Hu9 VL VL domain DNA 355 AS30SS_Hu9 VL FW1 DNA 356 AS30SS_Hu9 VL CDR-L1 DNA 357 AS30SS_Hu9 VL FW2 DNA 358 AS30SS_Hu9 VL CDR-L2 DNA 359 AS30SS_Hu9 VL FW3 DNA 360 AS30SS_Hu9 VL CDR-L3 DNA 361 AS30SS_Hu9 VL FW4 DNA 362 AS30SS_Hu9 VL VL domain protein 363 AS30SS_Hu9 VL FW1 protein 364 AS30SS_Hu9 VL CDR-L1 protein 365 AS30SS_Hu9 VL FW2 protein 366 AS30SS_Hu9 VL CDR-L2 protein 367 AS30SS_Hu9 VL FW3 protein 368 AS30SS_Hu9 VL CDR-L3 protein 369 AS30SS_Hu9 VL FW4 protein 370 C3_Hu10 VH VH domain DNA 371 C3_Hu10 VH FW1 DNA 372 C3_Hu10 VH CDR-H1 DNA 373 C3_Hu10 VH FW2 DNA 374 C3_Hu10 VH CDR-H2 DNA 375 C3_Hu10 VH FW3 DNA 376 C3_Hu10 VH CDR-H3 DNA 377 C3_Hu10 VH FW4 DNA 378 C3_Hu10 VH VH domain protein 379 C3_Hu10 VH FW1 protein 380 C3_Hu10 VH CDR-H1 protein 381 C3_Hu10 VH FW2 protein 382 C3_Hu10 VH CDR-H2 protein 383 C3_Hu10 VH FW3 protein 384 C3_Hu10 VH CDR-H3 protein 385 C3_Hu10 VH FW4 protein 386 C3_Hu10 VL VL domain DNA 387 C3_Hu10 VL FW1 DNA 388 C3_Hu10 VL CDR-L1 DNA 389 C3_Hu10 VL FW2 DNA 390 C3_Hu10 VL CDR-L2 DNA 391 C3_Hu10 VL FW3 DNA 392 C3_Hu10 VL CDR-L3 DNA 393 C3_Hu10 VL FW4 DNA 394 C3_Hu10 VL VL domain protein 395 C3_Hu10 VL FW1 protein 396 C3_Hu10 VL CDR-L1 protein 397 C3_Hu10 VL FW2 protein 398 C3_Hu10 VL CDR-L2 protein 399 C3_Hu10 VL FW3 protein 400 C3_Hu10 VL CDR-L3 protein 401 C3_Hu10 VL FW4 protein 402 C3_Hu11 VH VH domain DNA 403 C3_Hu11 VH FW1 DNA 404 C3_Hu11 VH CDR-H1 DNA 405 C3_Hu11 VH FW2 DNA 406 C3_Hu11 VH CDR-H2 DNA 407 C3_Hu11 VH FW3 DNA 408 C3_Hu11 VH CDR-H3 DNA 409 C3_Hu11 VH FW4 DNA 410 C3_Hu11 VH VH domain protein 411 C3_Hu11 VH FW1 protein 412 C3_Hu11 VH CDR-H1 protein 413 C3_Hu11 VH FW2 protein 414 C3_Hu11 VH CDR-H2 protein 415 C3_Hu11 VH FW3 protein 416 C3_Hu11 VH CDR-H3 protein 417 C3_Hu11 VH FW4 protein 418 C3_Hu11 VL VL domain DNA 419 C3_Hu11 VL FW1 DNA 420 C3_Hu11 VL CDR-L1 DNA 421 C3_Hu11 VL FW2 DNA 422 C3_Hu11 VL CDR-L2 DNA 423 C3_Hu11 VL FW3 DNA 424 C3_Hu11 VL CDR-L3 DNA 425 C3_Hu11 VL FW4 DNA 426 C3_Hu11 VL VL domain protein 427 C3_Hu11 VL FW1 protein 428 C3_Hu11 VL CDR-L1 protein 429 C3_Hu11 VL FW2 protein 430 C3_Hu11 VL CDR-L2 protein 431 C3_Hu11 VL FW3 protein 432 C3_Hu11 VL CDR-L3 protein 433 C3_Hu11 VL FW4 protein 434 C21_Hu11 VH VH domain DNA 435 C21_Hu11 VH FW1 DNA 436 C21_Hu11 VH CDR-H1 DNA 437 C21_Hu11 VH FW2 DNA 438 C21_Hu11 VH CDR-H2 DNA 439 C21_Hu11 VH FW3 DNA 440 C21_Hu11 VH CDR-H3 DNA 441 C21_Hu11 VH FW4 DNA 442 C21_Hu11 VH VH domain protein 443 C21_Hu11 VH FW1 protein 444 C21_Hu11 VH CDR-H1 protein 445 C21_Hu11 VH FW2 protein 446 C21_Hu11 VH CDR-H2 protein 447 C21_Hu11 VH FW3 protein 448 C21_Hu11 VH CDR-H3 protein 449 C21_Hu11 VH FW4 protein 450 C21_Hu11 VL VL domain DNA 451 C21_Hu11 VL FW1 DNA 452 C21_Hu11 VL CDR-L1 DNA 453 C21_Hu11 VL FW2 DNA 454 C21_Hu11 VL CDR-L2 DNA 455 C21_Hu11 VL FW3 DNA 456 C21_Hu11 VL CDR-L3 DNA 457 C21_Hu11 VL FW4 DNA 458 C21_Hu11 VL VL domain protein 459 C21_Hu11 VL FW1 protein 460 C21_Hu11 VL CDR-L1 protein 461 C21_Hu11 VL FW2 protein 462 C21_Hu11 VL CDR-L2 protein 463 C21_Hu11 VL FW3 protein 464 C21_Hu11 VL CDR-L3 protein 465 C21_Hu11 VL FW4 protein 466 C21_Hu21 VH VH domain DNA 467 C21_Hu21 VH FW1 DNA 468 C21_Hu21 VH CDR-H1 DNA 469 C21_Hu21 VH FW2 DNA 470 C21_Hu21 VH CDR-H2 DNA 471 C21_Hu21 VH FW3 DNA 472 C21_Hu21 VH CDR-H3 DNA 473 C21_Hu21 VH FW4 DNA 474 C21_Hu21 VH VH domain protein 475 C21_Hu21 VH FW1 protein 476 C21_Hu21 VH CDR-H1 protein 477 C21_Hu21 VH FW2 protein 478 C21_Hu21 VH CDR-H2 protein 479 C21_Hu21 VH FW3 protein 480 C21_Hu21 VH CDR-H3 protein 481 C21_Hu21 VH FW4 protein 482 C21_Hu21 VL VL domain DNA 483 C21_Hu21 VL FW1 DNA 484 C21_Hu21 VL CDR-L1 DNA 485 C21_Hu21 VL FW2 DNA 486 C21_Hu21 VL CDR-L2 DNA 487 C21_Hu21 VL FW3 DNA 488 C21_Hu21 VL CDR-L3 DNA 489 C21_Hu21 VL FW4 DNA 490 C21_Hu21 VL VL domain protein 491 C21_Hu21 VL FW1 protein 492 C21_Hu21 VL CDR-L1 protein 493 C21_Hu21 VL FW2 protein 494 C21_Hu21 VL CDR-L2 protein 495 C21_Hu21 VL FW3 protein 496 C21_Hu21 VL CDR-L3 protein 497 C21_Hu21 VL FW4 protein 498 Triab 3407 HC1 Full chain protein 499 Triab 3407 HC2 Full chain protein 500 Triab 3407 LC1 Full chain protein 501 Triab 3407 LC2 Full chain protein 502 Triab 3423 HC1 Full chain protein 503 Triab 3423 HC2 Full chain protein 504 Triab 3423 LC1 Full chain protein 505 Triab 3423 LC2 Full chain protein 506 Triab 3429 HC1 Full chain protein 507 Triab 3429 HC2 Full chain protein 508 Triab 3429 LC1 Full chain protein 509 Triab 3429 LC2 Full chain protein 510 Triab 3437 HC1 Full chain protein 511 Triab 3437 HC2 Full chain protein 512 Triab 3437 LC1 Full chain protein 513 Triab 3437 LC2 Full chain protein 514 Triab 3439 HC1 Full chain protein 515 Triab 3439 HC2 Full chain protein 516 Triab 3439 LC1 Full chain protein 517 Triab 3439 LC2 Full chain protein 518 AS30_Hu6 × C3_Hu10 HC1 Full chain protein duobody 519 AS30_Hu6 × C3_Hu10 HC2 Full chain protein duobody 520 AS30_Hu6 × C3_Hu10 LC1 Full chain protein duobody 521 AS30_Hu6 × C3_Hu10 LC2 Full chain protein duobody 522 AS30_Hu6 × C3_Hu10 TBTI HC Full chain protein 523 AS30_Hu6 × C3_Hu10 TBTI LC Full chain protein 524 AS30_Hu6 × C21_Hu11 HC1 Full chain protein duetmab 525 AS30_Hu6 × C21_Hu11 HC2 Full chain protein duetmab 526 AS30_Hu6 × C21_Hu11 LC1 Full chain protein duetmab 527 AS30_Hu6 × C21_Hu11 LC2 Full chain protein duetmab 528 AS30_Hu6 × C21_Hu11 HC Full chain protein TBTI 529 AS30_Hu6 × C21_Hu11 LC Full chain protein TBTI 530 AS30_Hu9 × C3_Hu11 HC Full chain protein CODV 531 AS30_Hu9 × C3_Hu11 LC Full chain protein CODV 532 AS30_Hu9 × C21_Hu21 HC Full chain protein CODV 533 AS30_Hu9 × C21_Hu21 LC Full chain protein CODV
(219) Target Proteins
(220) Provided herein are multispecific binding molecules (e.g., binding proteins) that include a binding domain that binds an extracellular portion of dystroglycan and a binding domain that binds laminin-2. The terms “binds” and “specifically binds” are used interchangeably herein. In some embodiments, a binding domain that “binds” an antigen (e.g., laminin-2 or an extracellular portion of dystroglycan) binds to the antigen with an K.sub.D of less than or equal to about 1×10.sup.−6 M. In some embodiments, binding affinity (e.g., K.sub.D) of the antigen binding domain to the antigen (e.g., an antigen epitope) is assayed using the antigen binding domain in a monovalent antibody or antigen-binding fragment thereof. In some embodiments, binding affinity (e.g., K.sub.D) of the antigen binding domain to the antigen (e.g., an antigen epitope) is assayed using the antigen binding domain in a multispecific format of the present disclosure.
(221) As used herein, dystroglycan (DG) refers to the dystrophin-associated protein that acts as a component of the dystrophin complex linking the extracellular matrix (ECM, also known as the basal lamina) to the F-actin-associated cytoskeleton of muscle fibers. Dystroglycan comprises two subunits, alpha dystroglycan and beta dystroglycan, that are post-translationally cleaved and associate non-covalently with each other. In some embodiments, the dystroglycan is human dystroglycan (e.g., a protein encoded by the human DAG1 gene as set forth in NCBI Ref. Seq. Gene ID No. 1605, or a protein corresponding to UniProt Entry Q14118). In some embodiments, the dystroglycan is mouse dystroglycan (e.g., a protein encoded by the mouse Dag1 gene as set forth in NCBI Ref. Seq. Gene ID No. 13138, or a protein corresponding to UniProt Entry Q62165).
(222) In some embodiments, a binding domain of the present disclosure binds alpha-dystroglycan. In some embodiments, a binding domain of the present disclosure binds beta-dystroglycan. In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence SIVVEWTNN TLPLEPCPKE QIIGLSRRIA DENGKPRPAF SNALEPDFKA LSIAVTGSGS CRHLQFIPVA PPSPGSSAAP ATEVPDRDPE KSSEDD (SEQ ID NO:290). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence SIVVEWTNN TLPLEPCPKE QIIGLSRRIA DENGKPRPAF SNALEPDFKA LSIAVTGSGS CRHLQFIPVA PPSPGSSAAP ATEVPDRDPE KSSEDD (SEQ ID NO:290). In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence SIVVEWT NNTLPLEPCP KEQIAGLSRR IAEDDGKPRP AFSNALEPDF KATSITVTGS GSCRHLQFIP VVPPRRVPSE APPTEVPDRD PEKSSEDDV (SEQ ID NO:291). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence SIVVEWT NNTLPLEPCP KEQIAGLSRR IAEDDGKPRP AFSNALEPDF KATSITVTGS GSCRHLQFIP VVPPRRVPSE APPTEVPDRD PEKSSEDDV (SEQ ID NO:291). In some embodiments, a binding domain of the present disclosure binds the extracellular portion of human dystroglycan. In some embodiments, a binding domain of the present disclosure binds the extracellular portion of mouse dystroglycan. In some embodiments, a binding domain of the present disclosure binds the extracellular portions of human and mouse dystroglycan.
(223) In some embodiments, a binding domain of the present disclosure binds the extracellular portion of human dystroglycan with an equilibrium dissociation constant (K.sub.D) lower than about 1 μM, lower than about 500 nM, lower than about 400 nM, lower than about 300 nM, lower than about 200 nM, lower than about 100 nM, lower than about 50 nM, lower than about 25 nM, lower than about 10 nM, or lower than about 1 nM. In some embodiments, the affinity of binding between a binding domain of the present disclosure and the extracellular portion of human dystroglycan is measured when the binding domain is in a bispecific format, rather than as a monospecific binding domain (such as a monospecific antibody). In some embodiments, an antigen binding site of the present disclosure that binds the extracellular portion of dystroglycan binds the extracellular portion of human dystroglycan with an equilibrium dissociation constant (K.sub.D) lower than about 1 μM, lower than about 500 nM, lower than about 400 nM, lower than about 300 nM, lower than about 200 nM, lower than about 100 nM, lower than about 50 nM, lower than about 25 nM, lower than about 10 nM, or lower than about 1 nM when assayed as part of a multispecific binding protein.
(224) As used herein, laminin-2 (also known as merosin) refers to the extracellular basement membrane protein that binds to dystroglycan. Laminin-2 is composed of three subunits: alpha, beta, and gamma. In some embodiments, the laminin-2 is human laminin subunit alpha 2 (e.g., a protein encoded by the human LAMA2 gene as set forth in NCBI Ref. Seq. Gene ID No. 3908, or a protein corresponding to UniProt Entry P24043). In some embodiments, the dystroglycan is mouse laminin subunit alpha 2 (e.g., a protein encoded by the mouse Lama2 gene as set forth in NCBI Ref. Seq. Gene ID No. 16773, or a protein corresponding to UniProt Entry Q60675).
(225) In some embodiments, a binding domain of the present disclosure binds laminin-2. In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising a laminin G-like (LG) domain 4 of laminin-2, a laminin G-like (LG) domain 5 of laminin-2, or both. In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence VQPQPV PTPAFPFPAP TMVHGPCVAE SEPALLTGSK QFGLSRNSHI AIAFDDTKVK NRLTIELEVR TEAESGLLFY MARINHADFA TVQLRNGFPY FSYDLGSGDT STMIPTKIND GQWHKIKIVR VKQEGILYVD DASSQTISPK KADILDVVGI LYVGGLPINY TTRRIGPVTY SLDGCVRNLH MEQAPVDLDQ PTSSFHVGTC FANAESGTYF DGTGFAKAVG GFKVGLDLLV EFEFRTTRPT GVLLGVSSQK MDGMGIEMID EKLMFHVDNG AGRFTAIYDA GIPGHMCNGQ WHKVTAKKIK NRLELVVDGN QVDAQSPNSA STSADTNDPV FVGGFPGGLN QFGLTTNIRF RGCIRSLKLT KGTGKPLEVN FAKALELRGV QPVSCPTT (SEQ ID NO:300). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence VQPQPV PTPAFPFPAP TMVHGPCVAE SEPALLTGSK QFGLSRNSHI AIAFDDTKVK NRLTIELEVR TEAESGLLFY MARINHADFA TVQLRNGFPY FSYDLGSGDT STMIPTKIND GQWHKIKIVR VKQEGILYVD DASSQTISPK KADILDVVGI LYVGGLPINY TTRRIGPVTY SLDGCVRNLH MEQAPVDLDQ PTSSFHVGTC FANAESGTYF DGTGFAKAVG GFKVGLDLLV EFEFRTTRPT GVLLGVSSQK MDGMGIEMID EKLMFHVDNG AGRFTAIYDA GIPGHMCNGQ WHKVTAKKIK NRLELVVDGN QVDAQSPNSA STSADTNDPV FVGGFPGGLN QFGLTTNIRF RGCIRSLKLT KGTGKPLEVN FAKALELRGV QPVSCPTT (SEQ ID NO:300). In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence ANAESGTYF DGTGFAKAVG GFKVGLDLLV EFEFRTTRPT GVLLGVSSQK MDGMGIEMID EKLMFHVDNG AGRFTAIYDA GIPGHMCNGQ WHKVTAKKIK NRLELVVDGN QVDAQSPNSA STSADTNDPV FVGGFPGGLN QFGLTTNIRF RGCIRSLKLT KGTGKPLEVN FAKALELRGV QPVSCPTT (SEQ ID NO:292). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence ANAESGTYF DGTGFAKAVG GFKVGLDLLV EFEFRTTRPT GVLLGVSSQK MDGMGIEMID EKLMFHVDNG AGRFTAIYDA GIPGHMCNGQ WHKVTAKKIK NRLELVVDGN QVDAQSPNSA STSADTNDPV FVGGFPGGLN QFGLTTNIRF RGCIRSLKLT KGTGKPLEVN FAKALELRGV QPVSCPTT (SEQ ID NO:292). In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence Q PEPVPTPAFP TPTPVLTHGP CAAESEPALL IGSKQFGLSR NSHIAIAFDD TKVKNRLTIE LEVRTEAESG LLFYMARINH ADFATVQLRN GLPYFSYDLG SGDTHTMIPT KINDGQWHKI KIMRSKQEGI LYVDGASNRT ISPKKADILD VVGMLYVGGL PINYTTRRIG PVTYSIDGCV RNLHMAEAPA DLEQPTSSFH VGTCFANAQR GTYFDGTGFA KAVGGFKVGL DLLVEFEFRT TTTTGVLLGI SSQKMDGMGI EMIDEKLMFH VDNGAGRFTA VYDAGVPGHL CDGQWHKVTA NKIKHRIELT VDGNQVEAQS PNPASTSADT NDPVFVGGFP DDLKQFGLTT SIPFRGCIRS LKLTKGTGKP LEVNFAKALE LRGVQPVSCP AN (SEQ ID NO:301). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence Q PEPVPTPAFP TPTPVLTHGP CAAESEPALL IGSKQFGLSR NSHIAIAFDD TKVKNRLTIE LEVRTEAESG LLFYMARINH ADFATVQLRN GLPYFSYDLG SGDTHTMIPT KINDGQWHKI KIMRSKQEGI LYVDGASNRT ISPKKADILD VVGMLYVGGL PINYTTRRIG PVTYSIDGCV RNLHMAEAPA DLEQPTSSFH VGTCFANAQR GTYFDGTGFA KAVGGFKVGL DLLVEFEFRT TTTTGVLLGI SSQKMDGMGI EMIDEKLMFH VDNGAGRFTA VYDAGVPGHL CDGQWHKVTA NKIKHRIELT VDGNQVEAQS PNPASTSADT NDPVFVGGFP DDLKQFGLTT SIPFRGCIRS LKLTKGTGKP LEVNFAKALE LRGVQPVSCP AN (SEQ ID NO:301). In some embodiments, a binding domain of the present disclosure binds a polypeptide comprising the sequence ANAQR GTYFDGTGFA KAVGGFKVGL DLLVEFEFRT TTTTGVLLGI SSQKMDGMGI EMIDEKLMFH VDNGAGRFTA VYDAGVPGHL CDGQWHKVTA NKIKHRIELT VDGNQVEAQS PNPASTSADT NDPVFVGGFP DDLKQFGLTT SIPFRGCIRS LKLTKGTGKP LEVNFAKALE LRGVQPVSCP AN (SEQ ID NO:293). In some embodiments, a binding domain of the present disclosure binds an epitope or region within the sequence ANAQR GTYFDGTGFA KAVGGFKVGL DLLVEFEFRT TTTTGVLLGI SSQKMDGMGI EMIDEKLMFH VDNGAGRFTA VYDAGVPGHL CDGQWHKVTA NKIKHRIELT VDGNQVEAQS PNPASTSADT NDPVFVGGFP DDLKQFGLTT SIPFRGCIRS LKLTKGTGKP LEVNFAKALE LRGVQPVSCP AN (SEQ ID NO:293). In some embodiments, a binding domain of the present disclosure binds human laminin-2. In some embodiments, a binding domain of the present disclosure binds mouse laminin-2. In some embodiments, a binding domain of the present disclosure binds human and mouse laminin-2.
(226) In some embodiments, a binding domain of the present disclosure binds human laminin-2 with an equilibrium dissociation constant (K.sub.D) lower than about 1 μM, lower than about 500 nM, lower than about 400 nM, lower than about 300 nM, lower than about 200 nM, lower than about 100 nM, lower than about 50 nM, lower than about 25 nM, lower than about 10 nM, or lower than about 1 nM. In some embodiments, the affinity of binding between a binding domain of the present disclosure and human laminin-2 is measured when the binding domain is in a bispecific format, rather than as a monospecific binding domain (such as a monospecific antibody). In some embodiments, an antigen binding site of the present disclosure that binds laminin-2 binds human laminin-2 with an equilibrium dissociation constant (K.sub.D) lower than about 1 μM, lower than about 500 nM, lower than about 400 nM, lower than about 300 nM, lower than about 200 nM, lower than about 100 nM, lower than about 50 nM, lower than about 25 nM, lower than about 10 nM, or lower than about 1 nM when assayed as part of a multispecific binding protein.
(227) In some embodiments, a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds laminin-2. In some embodiments, a V.sub.H2/V.sub.L2 binding pair of the present disclosure binds the extracellular portion of dystroglycan, and a V.sub.H1/V.sub.L1 binding pair of the present disclosure binds laminin-2.
(228) Antibodies
(229) The present disclosure also provides antibodies (e.g., monovalent and/or monoclonal antibodies) comprising 1, 2, 3, 4, 5, or 6 CDR sequences of a binding domain shown in Table A2, D2, or I4, or a VH and/or VL domain sequence of a binding domain shown in Table D2 or I4 or encoded by a polynucleotide sequence shown in Table G2. In some embodiments, the antibody binds an extracellular portion of dystroglycan. In some embodiments, the antibody binds laminin-2. In some embodiments, the antibody comprises (a) an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:1-8, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:9-17, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:18-27; and (b) an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:28-37, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38-42, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:43-50. In some embodiments, the VH domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:170, 172, 174, 176, 178, 180, 182, 184, 186, and 188; and the VL domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:171, 173, 175, 177, 179, 181, 183, 185, 187, and 189. In some embodiments, the antibody comprises (a) an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of SEQ ID NO:316, a CDR-H2 comprising the sequence of SEQ ID NO:318, and a CDR-H3 comprising the sequence of SEQ ID NO:320; and (b) an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of SEQ ID NO:332, a CDR-L2 comprising the sequence of SEQ ID NO:334, and a CDR-L3 comprising the sequence of SEQ ID NO:336. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:314, and the VL domain comprises the amino acid sequence of SEQ ID NO:330. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:346, and the VL domain comprises the amino acid sequence of SEQ ID NO:362. In some embodiments, the antibody comprises (a) an antibody heavy chain comprising a CDR-H1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:51-55 and 81-95, a CDR-H2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:56-60 and 96-110, and a CDR-H3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:61-65 and 111-125; and (b) an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:66-70 and 126-140, a CDR-L2 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:38, 71-75, and 141-154, and a CDR-L3 comprising an amino acid sequence selected from the group consisting of SEQ ID NOs:76-80 and 155-169. In some embodiments, the VH domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs:190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210, 212, 214, 216, 218, 220, 222, 224, 226, and 228; and the VL domain comprises an amino acid sequence selected from the group consisting of SEQ ID NOs: 191, 193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223, 225, 227, and 229. In some embodiments, the antibody comprises an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of SEQ ID NO:428, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400. In some embodiments, the antibody comprises an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of SEQ ID NO:380, a CDR-H2 comprising the sequence of SEQ ID NO:382, and a CDR-H3 comprising the sequence of SEQ ID NO:384, and an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of SEQ ID NO:428, a CDR-L2 comprising the sequence of SEQ ID NO:398, and a CDR-L3 comprising the sequence of SEQ ID NO:400. In some embodiments, the antibody comprises an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:446, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464. In some embodiments, the antibody comprises an antibody heavy chain comprising a heavy chain variable domain (VH) comprising a CDR-H1 comprising the sequence of SEQ ID NO:444, a CDR-H2 comprising the sequence of SEQ ID NO:478, and a CDR-H3 comprising the sequence of SEQ ID NO:448, and an antibody light chain comprising a light chain variable domain (VL) comprising a CDR-L1 comprising the sequence of SEQ ID NO:460, a CDR-L2 comprising the sequence of SEQ ID NO:462, and a CDR-L3 comprising the sequence of SEQ ID NO:464. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:378, and the VL domain comprises the amino acid sequence of SEQ ID NO:394. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:410, and the VL domain comprises the amino acid sequence of SEQ ID NO:426. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:442, and the VL domain comprises the amino acid sequence of SEQ ID NO:458. In some embodiments, the VH domain comprises the amino acid sequence of SEQ ID NO:474, and the VL domain comprises the amino acid sequence of SEQ ID NO:490.
(230) Nucleic Acids
(231) Provided herein are isolated nucleic acid molecules comprising a nucleotide sequence encoding any of the multispecific (e.g., bispecific) binding molecules (e.g., bispecific binding proteins) of the present disclosure.
(232) Standard recombinant DNA methodologies are used to construct the polynucleotides that encode the polypeptides which form the binding proteins, incorporate these polynucleotides into recombinant expression vectors, and introduce such vectors into host cells. See e.g., Sambrook et al., 2001, M
(233) Other aspects of the present disclosure relate to isolated nucleic acid molecules comprising a nucleotide sequence encoding any of the binding proteins or polypeptide chains thereof described herein. In some embodiments, the isolated nucleic acid is operably linked to a heterologous promoter to direct transcription of the binding protein-coding nucleic acid sequence. A promoter may refer to nucleic acid control sequences which direct transcription of a nucleic acid. A first nucleic acid sequence is operably linked to a second nucleic acid sequence when the first nucleic acid sequence is placed in a functional relationship with the second nucleic acid sequence. For instance, a promoter is operably linked to a coding sequence of a binding protein if the promoter affects the transcription or expression of the coding sequence. Examples of promoters may include, but are not limited to, promoters obtained from the genomes of viruses (such as polyoma virus, fowlpox virus, adenovirus (such as Adenovirus 2), bovine papilloma virus, avian sarcoma virus, cytomegalovirus, a retrovirus, hepatitis-B virus, Simian Virus 40 (SV40), and the like), from heterologous eukaryotic promoters (such as the actin promoter, an immunoglobulin promoter, from heat-shock promoters, and the like), the CAG-promoter (Niwa et al., Gene 108(2):193-9, 1991), the phosphoglycerate kinase (PGK)-promoter, a tetracycline-inducible promoter (Masui et al., Nucleic Acids Res. 33:e43, 2005), the lac system, the trp system, the tac system, the trc system, major operator and promoter regions of phage lambda, the promoter for 3-phosphoglycerate kinase, the promoters of yeast acid phosphatase, and the promoter of the yeast alpha-mating factors. Polynucleotides encoding binding proteins of the present disclosure may be under the control of a constitutive promoter, an inducible promoter, or any other suitable promoter described herein or other suitable promoter that will be readily recognized by one skilled in the art.
(234) In some embodiments, the isolated nucleic acid is incorporated into a vector. In some embodiments, the vector is an expression vector. Expression vectors may include one or more regulatory sequences operatively linked to the polynucleotide to be expressed. The term “regulatory sequence” includes promoters, enhancers and other expression control elements (e.g., polyadenylation signals). Examples of suitable enhancers may include, but are not limited to, enhancer sequences from mammalian genes (such as globin, elastase, albumin, α-fetoprotein, insulin and the like), and enhancer sequences from a eukaryotic cell virus (such as SV40 enhancer on the late side of the replication origin (bp 100-270), the cytomegalovirus early promoter enhancer, the polyoma enhancer on the late side of the replication origin, adenovirus enhancers, and the like). Examples of suitable vectors may include, for example, plasmids, cosmids, episomes, transposons, and viral vectors (e.g., adenoviral, vaccinia viral, Sindbis-viral, measles, herpes viral, lentiviral, retroviral, adeno-associated viral vectors, etc.). Expression vectors can be used to transfect host cells, such as, for example, bacterial cells, yeast cells, insect cells, and mammalian cells. Biologically functional viral and plasmid DNA vectors capable of expression and replication in a host are known in the art, and can be used to transfect any cell of interest.
(235) Further provided herein are vector systems comprising multiple vectors, wherein the multiple vectors collectively encode a bispecific binding protein of the present disclosure. For example, in some embodiments, a vector system comprises one or more vectors encoding a first, second, third, and fourth polypeptide chain of a bispecific binding molecule of the present disclosure. In some embodiments, a vector system comprises a first, second, third, and fourth polypeptide chain of a bispecific binding molecule of the present disclosure.
(236) Host Cells and Methods of Producing Binding Proteins
(237) Other aspects of the present disclosure relate to a host cell (e.g., an isolated host cell) comprising one or more isolated polynucleotides, vectors, and/or vector systems described herein. In some embodiments, an isolated host cell of the present disclosure is cultured in vitro. In some embodiments, the host cell is a bacterial cell (e.g., an E. coli cell). In some embodiments, the host cell is a yeast cell (e.g., an S. cerevisiae cell). In some embodiments, the host cell is an insect cell. Examples of insect host cells may include, for example, Drosophila cells (e.g., S2 cells), Trichoplusia ni cells (e.g., High Five™ cells), and Spodoptera frupperda cells (e.g., Sf21 or Sf9 cells). In some embodiments, the host cell is a mammalian cell. Examples of mammalian host cells may include, for example, human embryonic kidney cells (e.g., 293 or 293 cells subcloned for growth in suspension culture), Expi293™ cells, CHO cells, baby hamster kidney cells (e.g., BHK, ATCC CCL 10), mouse sertoli cells (e.g., TM4 cells), monkey kidney cells (e.g., CV1 ATCC CCL 70), African green monkey kidney cells (e.g., VERO-76, ATCC CRL-1587), human cervical carcinoma cells (e.g., HELA, ATCC CCL 2), canine kidney cells (e.g., MDCK, ATCC CCL 34), buffalo rat liver cells (e.g., BRL 3A, ATCC CRL 1442), human lung cells (e.g., W138, ATCC CCL 75), human liver cells (e.g., Hep G2, HB 8065), mouse mammary tumor cells (e.g., MMT 060562, ATCC CCL51), TRI cells, MRC 5 cells, FS4 cells, a human hepatoma line (e.g., Hep G2), and myeloma cells (e.g., NS0 and Sp2/0 cells).
(238) Other aspects of the present disclosure relate to a method of producing any of the binding proteins described herein. In some embodiments, the method includes a) culturing a host cell (e.g., any of the host cells described herein) comprising an isolated nucleic acid, vector, and/or vector system (e.g., any of the isolated nucleic acids, vectors, and/or vector systems described herein) under conditions such that the host cell expresses the binding molecule; and b) isolating the binding molecule from the host cell.
(239) In some embodiments, multiple host cells can be used to produce components of a bispecific binding molecule (e.g., protein), which are then assembled into the bispecific binding molecule. In some embodiments, provided herein is a method of producing a bispecific binding protein comprising a first binding domain that binds an extracellular portion of dystroglycan and a second binding domain that binds laminin-2, the method comprising: a) culturing a first host cell that comprises a nucleic acid molecule encoding a first polypeptide chain comprising the first binding domain under conditions such that the host cell expresses the first polypeptide chain as part of a first monospecific binding protein with a first CH3 domain; b) culturing a second host cell that comprises a nucleic acid molecule encoding a second polypeptide chain comprising the second binding domain conditions such that the host cell expresses the second polypeptide chain as part of a second monospecific binding protein with a second CH3 domain; c) isolating the first monospecific binding protein from the first host cell; d) isolating the second monospecific binding protein from the second host cell; e) incubating the isolated first and second monospecific binding proteins under reducing conditions sufficient to allow cysteines in the hinge region to undergo disulfide bond isomerization; and f) obtaining the bispecific binding protein, wherein the first and second CH3 domains are different and are such that the heterodimeric interaction between said first and second CH3 domains is stronger than each of the homodimeric interactions of said first and second CH3 domains. For greater description, see, e.g., US PG Pub. No. US2013/0039913 and Labrijn, A. F. et al. (2013) Proc. Natl. Acad. Sci. 110:5145-5150.
(240) Methods of culturing host cells under conditions to express a protein are well known to one of ordinary skill in the art. Methods of isolating proteins from cultured host cells are well known to one of ordinary skill in the art, including, for example, by affinity chromatography (e.g., two step affinity chromatography comprising protein A affinity chromatography followed by size exclusion chromatography).
(241) Use for Binding Proteins
(242) Further provided herein are methods for treating or preventing an alpha-dystroglycanopathy in an individual, the method comprising administering to the individual a bispecific binding molecule of the present disclosure. Also provided herein are methods for providing linkage between laminin-2 and an extracellular portion of dystroglycan in an individual, the method comprising administering to the individual a bispecific binding molecule of the present disclosure. Further provided herein are kits comprising a bispecific binding molecule of the present disclosure and instructions for use in treating or preventing an alpha-dystroglycanopathy in an individual. In some embodiments, the individual is a human.
(243) Further provided herein are methods for treating or preventing an alpha-dystroglycanopathy in an individual, the method comprising administering to the individual a multispecific binding molecule of the present disclosure. Also provided herein are methods for providing linkage between laminin-2 and an extracellular portion of dystroglycan in an individual, the method comprising administering to the individual a multispecific binding molecule of the present disclosure. Further provided herein are kits comprising a multispecific binding molecule of the present disclosure and instructions for use in treating or preventing an alpha-dystroglycanopathy in an individual. In some embodiments, the individual is a human.
(244) In some embodiments, the individual has reduced expression of alpha-dystroglycan (e.g., as compared to expression in a control individual, or one lacking a genetic mutation described herein). In some embodiments, expression refers to expression in one or more tissues, e.g., muscle tissue.
(245) In some embodiments, alpha-dystroglycan expressed in the individual has impaired or aberrant O-glycosylation (e.g., as compared to expression in a control individual, or one lacking a genetic mutation described herein).
(246) In some embodiments, the individual has, has been diagnosed with, or has a propensity for developing an alpha-dystroglycanopathy. In some embodiments, the individual has a mutation in a gene selected from the group consisting of: dystroglycan (DAG1), protein O-mannosyltransferase-1 (POMT1), protein O-mannosyltransferase-2 (POMT2), protein O-linked mannose beta1,2-N-acetylglucosylaminyltransferase subunit 1 (POMGNT1), protein O-linked mannose beta1,4-N-acetylglucosylaminyltransferase subunit 2 (POMGNT2), xylosyl- and glucuronyltransferase 1 (LARGE1), xylosyl- and glucuronyltransferase 2 (LARGE2), dolichyl-phosphate mannosyltransferase subunit 1 (DPM1), dolichyl-phosphate mannosyltransferase subunit 2 (DPM2), dolichyl-phosphate mannosyltransferase subunit 3 (DPM3), fukutin, fukutin related protein (FKRP), isprenoid synthase domain containing (ISPD), protein O-mannose kinase (POMK), beta-1,3-N-acetylgalactosaminyltransferase 2 (B3GALNT2), beta-1,4-glucuronyltransferase 1 (B4GAT1), dolichol kinase (DOLK), transmembrane protein 5 (TMEM5), and GDP-mannose pyrophosphorylase B (GMPPB).
(247) In some embodiments, a bispecific binding molecule of the present disclosure is administered by intravenous infusion, intramuscular injection, intraperitoneal injection, or subcutaneous injection.
(248) The binding proteins can be employed in any known assay method, such as competitive binding assays, direct and indirect sandwich assays, and immunoprecipitation assays for the detection and quantitation of one or more target antigens. The binding proteins will bind the one or more target antigens with an affinity that is appropriate for the assay method being employed.
(249) Also provided herein are pharmaceutical compositions comprising a bispecific binding molecule of the present disclosure and an optional pharmaceutically acceptable carrier.
(250) Also provided herein are pharmaceutical compositions comprising a multispecific binding molecule of the present disclosure and an optional pharmaceutically acceptable carrier.
(251) The pharmaceutical composition can contain formulation materials for modifying, maintaining, or preserving, for example, the pH, osmolarity, viscosity, clarity, color, isotonicity, odor, sterility, stability, rate of dissolution or release, adsorption, or penetration of the composition. Suitable formulation materials include, but are not limited to, amino acids (such as glycine, glutamine, asparagine, arginine, or lysine), antimicrobials, antioxidants (such as ascorbic acid, sodium sulfite, or sodium hydrogen-sulfite), buffers (such as borate, bicarbonate, Tris-HCl, citrates, phosphates, or other organic acids), bulking agents (such as mannitol or glycine), chelating agents (such as ethylenediamine tetraacetic acid (EDTA)), complexing agents (such as caffeine, polyvinylpyrrolidone, beta-cyclodextrin, or hydroxypropyl-beta-cyclodextrin), fillers, monosaccharides, disaccharides, and other carbohydrates (such as glucose, mannose, or dextrins), proteins (such as serum albumin, gelatin, or immunoglobulins), coloring, flavoring and diluting agents, emulsifying agents, hydrophilic polymers (such as polyvinylpyrrolidone), low molecular weight polypeptides, salt-forming counterions (such as sodium), preservatives (such as benzalkonium chloride, benzoic acid, salicylic acid, thimerosal, phenethyl alcohol, methylparaben, propylparaben, chlorhexidine, sorbic acid, or hydrogen peroxide), solvents (such as glycerin, propylene glycol, or polyethylene glycol), sugar alcohols (such as mannitol or sorbitol), suspending agents, surfactants or wetting agents (such as pluronics; PEG; sorbitan esters; polysorbates such as polysorbate 20 or polysorbate 80; triton; tromethamine; lecithin; cholesterol or tyloxapal), stability enhancing agents (such as sucrose or sorbitol), tonicity enhancing agents (such as alkali metal halides—e.g., sodium or potassium chloride—or mannitol sorbitol), delivery vehicles, diluents, excipients and/or pharmaceutical adjuvants (see, e.g., R
(252) The optimal pharmaceutical composition will be determined by a skilled artisan depending upon, for example, the intended route of administration, delivery format, and desired dosage. Such compositions can influence the physical state, stability, rate of in vivo release, and rate of in vivo clearance of the binding protein.
(253) The primary vehicle or carrier in a pharmaceutical composition can be either aqueous or non-aqueous in nature. For example, a suitable vehicle or carrier for injection can be water, physiological saline solution, or artificial cerebrospinal fluid, possibly supplemented with other materials common in compositions for parenteral administration. Neutral buffered saline or saline mixed with serum albumin are further exemplary vehicles. Other exemplary pharmaceutical compositions comprise Tris buffer of about pH 7.0-8.5, or acetate buffer of about pH 4.0-5.5, which can further include sorbitol or a suitable substitute. In one embodiment of the disclosure, binding protein compositions can be prepared for storage by mixing the selected composition having the desired degree of purity with optional formulation agents in the form of a lyophilized cake or an aqueous solution. Further, the binding protein can be formulated as a lyophilizate using appropriate excipients such as sucrose.
(254) The formulation components are present in concentrations that are acceptable to the site of administration. For example, buffers are used to maintain the composition at physiological pH or at a slightly lower pH, typically within a pH range of from about 5 to about 8.
(255) When parenteral administration is contemplated, the therapeutic compositions for use can be in the form of a pyrogen-free, parenterally acceptable, aqueous solution comprising the desired binding protein in a pharmaceutically acceptable vehicle. A particularly suitable vehicle for parenteral injection is sterile distilled water in which a binding protein is formulated as a sterile, isotonic solution, properly preserved. Yet another preparation can involve the formulation of the desired molecule with an agent, such as injectable microspheres, bio-erodible particles, polymeric compounds (such as polylactic acid or polyglycolic acid), beads, or liposomes, that provides for the controlled or sustained release of the product which can then be delivered via a depot injection. Hyaluronic acid can also be used, and this can have the effect of promoting sustained duration in the circulation. Other suitable means for the introduction of the desired molecule include implantable drug delivery devices.
(256) It is also contemplated that certain formulations can be administered orally. In one embodiment of the disclosure, binding proteins that are administered in this fashion can be formulated with or without those carriers customarily used in the compounding of solid dosage forms such as tablets and capsules. For example, a capsule can be designed to release the active portion of the formulation at the point in the gastrointestinal tract where bioavailability is maximized and pre-systemic degradation is minimized. Additional agents can be included to facilitate absorption of the binding protein. Diluents, flavorings, low melting point waxes, vegetable oils, lubricants, suspending agents, tablet disintegrating agents, and binders can also be employed.
(257) Another pharmaceutical composition can involve an effective quantity of binding proteins in a mixture with non-toxic excipients that are suitable for the manufacture of tablets. By dissolving the tablets in sterile water, or another appropriate vehicle, solutions can be prepared in unit-dose form. Suitable excipients include, but are not limited to, inert diluents, such as calcium carbonate, sodium carbonate or bicarbonate, lactose, or calcium phosphate; or binding agents, such as starch, gelatin, or acacia; or lubricating agents such as magnesium stearate, stearic acid, or talc.
(258) Additional pharmaceutical compositions of the disclosure will be evident to those skilled in the art, including formulations involving binding proteins in sustained- or controlled-delivery formulations. Techniques for formulating a variety of other sustained- or controlled-delivery means, such as liposome carriers, bio-erodible microparticles or porous beads and depot injections, are also known to those skilled in the art. Additional examples of sustained-release preparations include semipermeable polymer matrices in the form of shaped articles, e.g. films, or microcapsules. Sustained release matrices can include polyesters, hydrogels, polylactides, copolymers of L-glutamic acid and gamma ethyl-L-glutamate, poly(2-hydroxyethyl-methacrylate), ethylene vinyl acetate, or poly-D(−)-3-hydroxybutyric acid. Sustained-release compositions can also include liposomes, which can be prepared by any of several methods known in the art.
(259) Pharmaceutical compositions to be used for in vivo administration typically must be sterile. This can be accomplished by filtration through sterile filtration membranes. Where the composition is lyophilized, sterilization using this method can be conducted either prior to, or following, lyophilization and reconstitution. The composition for parenteral administration can be stored in lyophilized form or in a solution. In addition, parenteral compositions generally are placed into a container having a sterile access port, for example, an intravenous solution bag or vial having a stopper pierceable by a hypodermic injection needle.
(260) Once the pharmaceutical composition has been formulated, it can be stored in sterile vials as a solution, suspension, gel, emulsion, solid, or as a dehydrated or lyophilized powder. Such formulations can be stored either in a ready-to-use form or in a form (e.g., lyophilized) requiring reconstitution prior to administration.
(261) The disclosure also encompasses kits for producing a single-dose administration unit. The kits can each contain both a first container having a dried protein and a second container having an aqueous formulation. Also included within the scope of this disclosure are kits containing single and multi-chambered pre-filled syringes (e.g., liquid syringes and lyosyringes).
(262) The effective amount of a binding protein pharmaceutical composition to be employed therapeutically will depend, for example, upon the therapeutic context and objectives. One skilled in the art will appreciate that the appropriate dosage levels for treatment will thus vary depending, in part, upon the molecule delivered, the indication for which the binding protein is being used, the route of administration, and the size (body weight, body surface, or organ size) and condition (the age and general health) of the patient. Accordingly, the clinician can titer the dosage and modify the route of administration to obtain the optimal therapeutic effect.
(263) Dosing frequency will depend upon the pharmacokinetic parameters of the binding protein in the formulation being used. Typically, a clinician will administer the composition until a dosage is reached that achieves the desired effect. The composition can therefore be administered as a single dose, as two or more doses (which may or may not contain the same amount of the desired molecule) over time, or as a continuous infusion via an implantation device or catheter. Further refinement of the appropriate dosage is routinely made by those of ordinary skill in the art and is within the ambit of tasks routinely performed by them. Appropriate dosages can be ascertained through use of appropriate dose-response data.
EXAMPLES
(264) The present disclosure will be more fully understood by reference to the following examples. They should not, however, be construed as limiting the scope of the present disclosure. It is understood that the examples and embodiments described herein are for illustrative purposes only and that various modifications or changes in light thereof will be suggested to persons skilled in the art and are to be included within the spirit and purview of this application and scope of the appended claims.
Example 1
Identification of Anti-Beta-DG ECD, Anti-LG-5, and Anti-LG-4/5 Antibodies
(265) Methods
(266) Protein Expression
(267) To express murine beta-DG extracellular domain (mbeta-DG ECD), a construct was generated that contained an E. coli codon-optimized cassette encoding an N-terminal maltose binding protein, TEV cleavage site, mbeta-DG (UniProt Q62165, amino acids 652-746), and a C-terminal HPC4 tag, with pET22b as the parent vector backbone. The construct was transformed into chemically competent Origami B (DE3) pLysS cells (Novagen). Expression was performed at 37° C., with ITPG induction at OD=0.6. Cells were pelleted and resuspended in lysis buffer containing EDTA-free protease inhibitors (Roche) and lysed by sonication. mbeta-DG-HPC4 was purified from clarified cell lysate by processing cell lysate over an amylose resin column (New England Biolabs), cleaving off the maltose binding protein with Turbo TEV protease (Eton Biosciences), processing the digest over an amylose resin and His-Trap FastFlow column (GE Healthcare) to remove undigested fusion protein and cleaved maltose binding protein, and processing the flow through over NETS-activated Sepharose 4 FastFlow resin (GE Healthcare) coupled with mouse anti-HPC4 antibody. Further purification was carried out on a Superdex 75 size exclusion column (GE Healthcare), and eluate fractions with highly purified mbeta-DG-HPC4 (as determined by running fraction samples on an SDS-PAGE gel and coomassie staining) were collected and pooled.
(268) To express murine or laminin G-like 5 domain (mLG-5 or hLG-5) constructs were generated that contained a mammalian codon-optimized cassette encoding N-terminal Avi and HPC4 tags, and either mLG-5 (see UniProt Q60675, amino acids 2932-3118; SEQ ID NO:292) or hLG-5 (UniProt P24043, amino acids 2936-3122; SEQ ID NO:293). The construct was used to transfect Expi293F cells using Expifectamine reagent (Thermo Fisher). After 7 days expression, soluble biotinylated protein was purified from the supernatant with NHS-activated Sepharose 4 FastFlow resin (GE Healthcare) coupled with mouse anti-HPC4 antibody.
(269) To express murine or human laminin G-like 4 and 5 domains (mLG-4/5 or hLG-4/5), constructs were generated that contained a mammalian codon-optimized cassette encoding an N-terminal mIgG2a fusion partner, TEV cleavage site, an Avi tag, an HPC4 tag, and either mLG-4/5 (UniProt Q60675, amino acids 2725-3118; SEQ ID NO:292) or hLG-4/5 (UniProt P24043, amino acids 2729-3122; SEQ ID NO:293). The constructs were used to transfect Expi293F cells using Expifectamine reagent (Thermo Fisher). After 7 days expression, soluble protein was purified from the supernatant with a HiTrap Mab Select SuRe column (GE Healthcare). mIgG2a was cleaved off the mLG-4/5 protein using Turbo TEV protease (Nacalai USA), and the digest was processed over Mab Select SuRe resin (GE Healthcare) and Ni-NTA resin (Qiagen) to remove mIgG2a and TEV protease from purified mLG-4/5.
(270) Phage Display
(271) Purified mbeta-DG, mLG-5, or mLG-4/5 and hLG-4/5 (e.g., alternating between using mouse and human peptides) was coupled to magnetic tosyl-activated beads (Invitrogen) and used to enrich phage display libraries for mbeta-DG, mLG-5, or mLG-4/5 binders. Antibody phage display libraries were used in mbeta-DG selections, and the Dyax FAB 310 antibody phage display library was used for hLG-4/5 and mLG-4/5 selections. Libraries were first depleted of non-specific binders using uncoated beads and an HPC4-6×His-Avi tagged unrelated protein. Three rounds of selection were then performed on the depleted libraries, using diminishing concentrations of antigen at each round (500 nM antigen at round 1, to 1 nM antigen at round 3). The enriched libraries were plated, individual library clones were picked and cultured in a 96-well format, and phage monoclonal antibodies were produced for each clone for phage ELISA binding assay.
(272) Phage ELISA Binding Assay
(273) Purified antigen (mbeta-DG, mLG-5, hLG-5, mLG-4/5, or hLG-4/5) was coated on Nunc MaxiSorp 96-well ELISA plates (Thermo Scientific) at 1 ug/ml. Phage monoclonal antibodies from the selected library clones were added to each well and positive or negative binding was detected using anti-M13 Europium labelled secondary (GE Healthcare, antibody custom labelled by Perkin Elmer).
(274) Variable Region Sequencing
(275) Bacterial stocks of positive binding clones were PCR amplified and sequenced, and unique variable heavy chain (VH) and variable light chain (VL) sequences were identified.
(276) Results
(277) Several phage library clones with specific binding affinity for beta-DG, LG-5, and LG-4/5 were identified: 10 clones specifically bound beta-DG, and 15 clones specifically bound LG-4/5. Sequencing of these clones revealed that variable heavy and variable light regions of each clone were distinct, as shown in Tables D through I supra (see, e.g., clones B04, B06, CL-40968, CL-40992, CL-41136, CL-41400, and CL-41500). Complementarity-determining regions (CDRs) of these clones are identified in Tables A through C supra.
Example 2
Generation of Hybridomas, Monoclonal Antibodies, and Chimeric Antibodies Targeted Against Beta-DG, LG-5, and LG-4/5
(278) Methods
(279) Cell Line Production
(280) Stable cell lines with either human or murine beta-DG surface expression were created by codon optimizing constructs containing an N-terminal myc tag and the extracellular and endogenous transmembrane domains of beta-DG (mouse UniProt Q62165, amino acids 652-893; human UniProt Q14118, amino acids 654-895). Adherent human embryonic kidney cells (HEK) and adherent Chinese hamster ovarian cells (CHO-K1) were transfected using lipofectamine (Thermo Fisher) and cells were selected with Geneticin (Gibco). Surviving cells were serial diluted for single cell clonality and surface expression of beta-DG was confirmed by anti-myc flow cytometry.
(281) Stable cell lines with either human or murine LG-5 surface expression were created by codon optimizing constructs containing a N-terminal myc tag, a Gly/Ser linker, LG-5 (mouse UniProt Q60675, amino acids 2932-3118; human UniProt P24043, amino acids 2936-3122), and a Tfr1 transmembrane domain for mammalian expression. Adherent Chinese hamster ovarian cells (CHO-K1) were transfected using lipofectamine (Thermo Fisher) and cells were selected with Geneticin (Gibco). Surviving cells were serial diluted for single cell clonality and surface expression of beta-DG was confirmed by anti-myc flow cytometry.
(282) Stable cell lines with either human or murine LG-4/5 surface expression were created by codon optimizing constructs containing a N-terminal myc tag, a Gly/Ser linker, LG-4/5 (mouse UniProt Q60675, amino acids 2725-3118; human UniProt P24043, amino acids 2729-3122), and a Tfr1 transmembrane domain for mammalian expression. Adherent human embryonic kidney cells (HEK) were transfected using lipofectamine (Thermo Fisher) and cells were selected with Geneticin (Gibco). Surviving cells were serial diluted for single cell clonality and surface expression of beta-DG was confirmed by anti-myc flow cytometry.
(283) Mouse Immunization
(284) Balb/c and Trianni mice were immunized with hbeta-DG, hLG-5, or hLG-4/5, then boosted with these proteins 3-4 times every two weeks. For mice immunized with hLG-4/5, mice were additionally boosted 3 times with human merosin every 2 weeks and once with a synthetic peptide that has identical sequence between human and mouse LG-5 (amino acid sequence=GFAKAVGGFKVGLDLLVEFE; SEQ ID NO:295).
(285) Hybridoma Generation
(286) Hybridoma cells were made by fusing mouse myeloma cells (from a Balb/c B-lymphoblast cell line, SP2/0, fused with Sendai virus) that are deficient in adenosine phosphoribosyltransferase (APRT) with spleen cells from the immunized mice. HAT selection (hypoxanthine, azaserine, and thymidine) and serial dilutions were performed to achieve single cell clonality.
(287) ELISA Antibody Binding Assay
(288) For ELISA assays, plates coated in either human beta-DG or LG-4/5 were blocked with 5% fetal bovine serum in PBS, and each well was incubated with a distinct culture supernatant. Plates were washed with PBS, incubated with HRP conjugated anti-mouse Fc secondary antibody, washed again with PBS, and developed for colorimetric measuring.
(289) Fluorescence Activated Cell Sorting (FACS) Antibody Binding Assay
(290) For FACS assays, stable cells with either human or murine beta-DG or LG-4/5 surface expression (see above) were incubated with antibody-containing culture supernatant, washed with PBS, incubated with FITC-conjugated anti-mouse Fc secondary antibody (Thermo Fisher), washed again with PBS, and analyzed on a flow cytometer.
(291) Surface Plasmon Resonance (Biacore) Kinetics Assay
(292) Hybridoma antibodies (contained in culture supernatant)t were further characterized by measuring antibody/antigen binding affinity and on/off-rate by Biacore kinetics assay, as per manufacturer's protocol (GE Healthcare). Antigens used for binding were human or murine beta-DG or LG-4/5.
(293) Monoclonal Antibody Generation
(294) Hybridoma clones were expanded and terminal flasks with ultra-low IgG fetal bovine serum supplement were seeded. After 7 days, supernatant was harvested and monoclonal antibodies were purified using a HiTrap Mab Select SuRe column (GE Healthcare). Resulting antibodies were tested again by ELISA, FACS, and Biacore kinetics assay (GE Healthcare) to confirm antibody binding properties.
(295) Immunofluorescence
(296) Immunofluorescence staining with unfixed frozen human and mouse muscle tissue sections was performed. Muscle tissue sections were stained with purified antibodies against beta-DG or LG-4/5, washed, stained with fluorescently labeled anti-mouse IgG secondary antibody, washed, mounted, and imaged using a fluorescence microscope.
(297) Variable Region Sequencing
(298) Total RNA was isolated from hybridoma cells that produced high affinity antibodies using the RNeasy Mini Kit (Qiagen) and first-strand cDNA was synthesized using the SMARTer RACE cDNA Amplification Kit (Clontech). The VH and VL gene segments were amplified by 5′-Rapid Amplification of cDNA Ends (5′-RACE) PCR using isotype specific primers. Amplified PCR fragments were cloned and sequenced. See, e.g., clones TDG-2, TDI-11, TDI-23, TDI-38, TLF39, TLF86, TLG3/TLG4, TLG26, TLI-3, TLI-7, TTLK71-4-6, TTLK123-3, TTLK145-6-3, TTLK170-2, WJL10, and WJL48.
(299) Chimeric Antibody Production
(300) VH and VL sequences generated from 5′-RACE PCR were codon optimized for mammalian expression and synthesized. VH sequences were subcloned into a mammalian expression vector with human IgG1 and VL sequences were subcloned into a mammalian expression vector with the constant human kappa chain. Expi293F cells were co-transfected with these constructs using Expifectamine reagent (Thermo Fisher) to express chimeric antibodies. After 7 days expression, antibodies were purified from the supernatant with a HiTrap MabSelect SuRe column (GE). Purified antibodies were rescreened by ELISA, FACS, and Biacore (GE Healthcare) to confirm binding affinity to beta-DG, LG-5, or LG-4/5. To confirm that antibodies bound to their respective antigens in muscle tissue, immunofluorescence staining with unfixed frozen human and mouse muscle tissue sections was performed.
(301) Results
(302) To screen for and select hybridomas that produced antibodies specific to beta-DG, LG-5, or LG-4/5, ELISA, FACS analysis, and Biacore kinetics assay were used to assess antibody binding. ELISA assays showed a range of binding affinities of antibodies to beta-DG, LG-5, or LG-4/5, with several samples giving strong colorimetric signal (exemplary data for three antibodies are provided in Table J below).
(303) TABLE-US-00016 TABLE J Monoclonal antibody anti-LG-5 binding kinetics Immobilized mAb with hLG-5 in Immobilized mAb with mLG-5 in flow flow Clone name ka(1/Ms) kd(1/s) KD(M) ka(1/Ms) kd (1/s) KD(M) AN01 9.90E+04 9.15E−04 9.24E−09 nb nb nb C3 4.88E+05 1.30E−03 2.66E−09 5.19E+05 4.29E−03 8.27E−09 C21 4.67E+05 1.31E−03 2.80E−09 8.13E+05 2.53E−03 3.04E−09 nb: no binding.
(304) Samples giving a strong colorimetric signal were assayed using FACS for binding affinity to cells expressing beta-DG or LG-4/5 on their surface. FACS analysis revealed that antibodies derived from clones C21 and C3 had binding affinity for both murine and human LG-4/5 (
(305) Various amounts of recombinant human laminin-2 (from Biolamina), murine LG-5, human LG-5, human LG4/5 were dot blotted onto nitrocellulose membrane and probed with anti-laminin-2 antibody. Results indicated that the antibodies recognized Laminin-2 or its fragments containing LG-5 (
(306) Anti-dystroglycan antibody clones were also characterized. Kinetics revealed that all antibodies tested displayed high affinity to their respective antigens, with most KDs in the 10.sup.−9M range (nanomolar sensitivity), as shown in Table K and
(307) TABLE-US-00017 TABLE K Monoclonal antibody anti-beta-DG binding kinetics. Immobilized mAb with hBeta-DG Immobilized mAb with mBeta-DG in flow in flow Clone name ka(1/Ms) kd(1/s) KD(M) ka(1/Ms) kd(1/s) KD(M) B06 9.68E+05 2.16E−03 2.36E−09 1.43E+04 2.32E−03 1.62E−07 B04 6.20E+04 1.60E+03 2.57E−09 6.20E+04 1.60E−03 2.57E−08 AS30 8.90E+05 9.63E−04 1.08E−09 7.73E+05 1.13E−03 1.48E−09 AS19 4.43E+09 1.04E+01 2.06E−09 2.02E+09 9.33E+00 3.38E−09 AS55 1.47E+05 7.27E−04 5.00E−09 3.04E+05 1.36E−03 4.47E−09
(308) To characterize clones AS30 and AS19, various amount of recombinant mouse or human beta-DG ECD, recombinant dystroglycan (from R&D Systems), C2C12 cell lysate, TA lysate and Fabrazyme as negative control were dot blotted onto nitrocellulose membrane and probed with anti-beta-DG antibody (
(309) Immunoprecipitation of beta-DG from C2C12 cell lysates solubilized under non-denaturing condition was performed with anti-beta-DG clone AS30 or AS19. The beta-DG/antibody complex was captured by protein A beads and run on SDS-PAGE, then reprobed with anti-alpha-DG and anti-beta-DG from R&D Systems. Both alpha-DG and beta-DG were immunoprecipitated, indicating they remain in complex after solubilization, and binding of anti-beta-DG antibody clones did not interfere the binding of alpha-DG to beta-DG (
(310) After hybridoma clones were expanded and monoclonal antibodies purified, antibodies were rescreened by ELISA, FACS, and Biacore to confirm binding affinity. Results were extremely similar to those generated for antibodies from culture supernatant, confirming that the antibodies retained their kinetic characteristics after amplification.
(311) To determine if antibodies could bind to muscle tissue, which contains abundant beta-DG and LG-4/5, immunofluorescence staining was done on mouse and human muscle tissue using purified antibodies. Unfixed tissue was used such that the native antigen conformation was preserved. Characteristic muscle sarcolemma staining was clearly demonstrated for human and mouse tissues, indicating specific LG-4/5 binding for C21 (
Example 3
Generation of Bispecific Antibodies Recognizing Beta-DG and the LG-4/5 Domain of the Laminin-2 Alpha Subunit
(312) Methods
(313) Tetravalent Bispecific Tandem Ig (TBTI) Antibody Generation
(314) VH and VL sequences obtained from generated hybridoma cells were codon-optimized for mammalian expression and synthesized (Genscript). To generate constructs expressing the light chains, one VL sequence specific to beta-DG, a (G4S).sub.2 linker, one VL sequence specific to LG-4/5, and human kappa chain (Genbank Q502W4) or murine kappa chain (Genbank BAB33404) were fused together and cloned into the transient episomal expression vector pXL, an analogue of the pTT vector described by Durocher et al. (Nucl. Acids Res. 2002, 30(2), E9). To generate constructs expressing the heavy chains, one VH sequence specific to beta-DG, a (G4S).sub.2 linker, one VH sequence specific to LG-4/5, and human IgG1 (Genbank Q569F4) or murine IgG1 (GenBank AAA75163.1) were fused together (
(315) These constructs were co-transfected into HEK293 FreeStyle 293-F or Expi293 cells (Thermo Fisher). After 7 days expression, antibodies were purified from the supernatant with a HiTrap MabSelect™ SuRe™ Protein A column (GE Healthcare).
(316) Crossover Dual Variable Domain Ig (CODVIg) Antibody Generation
(317) VH and VL sequences obtained from generated hybridoma cells were codon-optimized for mammalian expression and synthesized (Genscript). To generate constructs expressing the light chains, one VL sequence specific to LG-4/5, an L.sub.1 linker, one VL sequence specific to beta-DG, a L.sub.2 linker, and human kappa chain (Genbank Q502W4) or murine kappa chain (Genbank BAB33404) were fused together and cloned into expression vector pXL. To generate constructs expressing the heavy chains, one VH sequence specific to beta-DG, a L.sub.3 linker, one VH sequence specific to LG-4/5, a L.sub.4 linker, and human IgG1 (Genbank Q569F4) or murine IgG1 (GenBank AAA75163.1) were fused together and cloned into expression vector pXL. Specific combinations of linker sequences used are provided below.
(318) These constructs were co-transfected into HEK293 FreeStyle 293-F or Expi293 cells (Thermo Fisher). After 7 days expression, antibodies were purified from the supernatant with a HiTrap MabSelect™ SuRe™ Protein A column (GE Healthcare).
(319) Sequential Biacore Binding Analysis
(320) Parental monoclonal antibodies (AS19, C3 and C21) and three bispecific antibodies (AS19×C3 and AS30×C3 in TBTI, and AS30×C3 in CODVIg) were each immobilized onto individual CM5 Series S Biacore chips (GE Healthcare). Human or murine LG-4/5, followed in sequence by human or murine beta-DG, was flown over each chip and binding was assessed.
(321) Double Deck Sandwich ELISA
(322) 96-well plates were coated with 50 ng human LG-4/5 and blocked with 5% fetal bovine serum in PBS. Each well was incubated with 1 μg of the generated bispecific antibodies (murine IgG backbone). After 2 hours, wells were washed with PBS and re-incubated with 16 ng to 1 μg per well of human beta-DG fused to the human hIgG1 Fc antibody region (hbeta-DG-hFc). After 2 hours, wells were washed with PBS, incubated with a HRP conjugated anti-hFc secondary antibody for 45 minutes, washed again with PBS, and developed for colorimetric measuring.
(323) Results
(324) Antibodies were engineered into multiple bispecific formats including tetravalent bispecific tandem IgG format (TBTI;
(325) Bispecific antibodies (biAbs) recognizing beta-DG (using clones B06, AS19, and AS30) and LG-4/5 (using clones AN01, C3, and C21) were generated in TBTI or CODVIg format.
(326) Multiple linker combinations were attempted and both variable region orientations were tested (i.e. having the anti-LG4/5 farther from the constant region rather than anti-βDG variable region and vice versa). For TBTI, (T1T2 and T5T6), the linker between the light chain variable regions consisted of 10 residues that were glycine or serine (e.g., GGGGSGGGGS; SEQ ID NO:294) and no linker was used between the second variable region and the constant region. The same linker (10 residues that were glycine or serine) was used between the heavy chain variable regions and no linker was used between the second heavy chain variable and the constant. For CODVIg format, two sets of linker lengths were used: 10-10-0-0 and 7-5-1-2 (# of residues for L.sub.1-L.sub.2-L.sub.3-L.sub.4). CODVIg C5C6 linkers consisted of 10 residues that were glycine or serine between variable light chains and 10 residues that were glycine or serine between the second variable region and the light constant region. No linkers were used on the heavy chain. Linker sequences for these combinations are as follows (depicted as L.sub.1, L.sub.2, L.sub.3, L.sub.4): GQPKAAP (SEQ ID NO:297), TKGPS (SEQ ID NO:298), S, RT; GGSGSSGSGG (SEQ ID NO:299), GGSGSSGSGG (SEQ ID NO:299), 0,0; and EPKSDKTHTSPPSP (SEQ ID NO:296), GG, EPKSDKTHTSPPSP (SEQ ID NO:296), GG. A list of bispecific antibodies created is provided in Table L below.
(327) TABLE-US-00018 TABLE L CODV and TBTI bispecific antibody configurations tested. CODV with 10-10-0-0 linker CODV with 7-5-1-2 linker TBTI with (GGGGS)2 Linker anti-laminin-2 (AN01) × anti-beta- anti-laminin-2(AN01) × anti-beta- DG(clone B04) DG(clone B04) anti-beta-DG(clone B04) × anti-laminin- anti-beta-DG(clone B04) × anti-laminin- 2(AN01) 2(AN01) anti-laminin-2(AN01) × anti-beta- anti-laminin-2(AN01) × anti-beta- DG(clone B06) DG(clone B06) *anti-beta-DG(clone B06) × anti- anti-beta-DG(clone B06) × anti-laminin- laminin-2(AN01) = 1331 and 1460 2(AN01) anti-beta-DG(AS19) × anti-beta-DG(AS19) × anti-laminin- *anti-beta-DG(AS19) × anti-laminin- anti-laminin-2(C3) 2(C3) 2(C3) = T1T2 anti-laminin-2(C03) × anti-laminin-2(C03) × anti-beta- anti-laminin-2(C03) × anti-beta- anti-beta-DG(clone AS19) DG(clone AS19) DG(clone AS19) anti-beta-DG(clone AS19) × anti-beta-DG(clone AS19) × anti- anti-beta-DG(clone AS19) × anti- anti-laminin-2(C3) laminin-2(C3) laminin-2(C3) anti-laminin-2(C3) × anti- anti-laminin-2(C3) × anti-beta-DG(clone anti-laminin-2(C3) × anti-beta-DG(clone beta-DG(clone AS19) AS19) AS19) anti-beta-DG(AS30) × anti-beta-DG(AS30) × anti-laminin- anti-beta-DG(AS30) × anti-laminin- anti-laminin-2(C3) = 2(C3) 2(C3) = T5T6 C5C6 anti-laminin-2(C03) × anti-laminin-2(C03) × anti-beta- anti-laminin-2(C03) × anti-beta- anti-beta-DG(clone AS30) DG(clone AS30) DG(clone AS30) anti-beta-DG(clone AS30) × anti-beta-DG(clone AS30) × anti- anti-beta-DG(clone AS30) × anti- anti-laminin-2(C21) laminin-2(C21) laminin-2(C21) anti-laminin-2(C21) × anti-laminin-2(C21) × anti-beta- anti-laminin-2(C21) × anti-beta- anti-beta-DG(clone AS30) DG(clone AS30) DG(clone AS30)
(328) To confirm that biAbs have the capacity to bind LG-4/5 and beta-DG at the same time, sequential Biacore analysis (GE Healthcare) and double deck Sandwich ELISA assays were performed.
(329) Parental mAbs to LG-4/5 or beta-DG and biAbs of anti-LG4/5 and beta-DG were captured onto biacore chips, and then flowed with human LG4/5 and human beta-DG sequentially to determine their concurrent bindings to both antigens. Sequential Biacore analysis revealed that bispecific antibodies can bind either human (1.sup.st peak,
(330) Double deck Sandwich ELISA revealed that bispecific antibodies can simultaneously bind hLG-4/5 and hbeta-DG. Colorimetric signals could be detected only when hLG-4/5 and hbeta-DG-hFc were both added in the assay (
Example 4
Intra-Muscular Injection of Bi-Specific Antibodies Into LARGE.SUP.myd-3J/GrsrJ .Mice
(331) Methods
(332) LARGE.sup.myd-3J/GrsrJ Mouse Model
(333) LARGE.sup.myd-3J/GrsrJ (stock #008581) mice from Jackson lab is a mouse model of alpha-dystroglycanopathy caused by a mutation in the LARGE gene. The mutation of the LARGE gene maps between D8Mit65 and DMit249, with markers at 44.4 Mb and 83.8 Mb, respectively; the LARGE gene is located at 75.7 Mb. Mice homozygous for the LARGE generally begin to display evidence of muscle degeneration at two to three months of age, although some animals may exhibit symptoms as early as wean age. Inability to splay the hind legs outward when held up by the tail is an initial phenotype and this progresses with age to include swaying gait, then dragging of the hind legs.
(334) Bispecific Antibody Injection
(335) A group of 10 LARGE.sup.myd-3J/GrsrJ mice were given intramuscular injections into the left and right tibialis anterior (TA) muscles. The left TA received two injections of biAb (T1T2; murine Fc backbone) at 0.7 μg/μl in 500 μl saline per injection. The right TA received two control injections of a 1:1 weight by weight mixture of parental AS19 and C3 antibodies at 0.7 μg/μl in 50 μl saline per injection. The two injections were spaced 3 days apart.
(336) Exercise-Induced Tissue Damage
(337) One day after the last intramuscular injection, all mice received intraperitoneal injections (IP) of Evans blue dye (EBD) at 10 mg/ml with 50 μl given per 10 g body weight. One day after IP of EBD, all mice were exercised via a forced treadmill until exhaustion. The animals were euthanized with CO.sub.2 according to standard IACUC protocol.
(338) Tissue Preparation and Immunofluorescence Staining
(339) After euthanasia, the TA muscles were removed, cut, and placed in optimum cutting temperature compound. The tissue was then rapidly frozen via a 2-methyl butane dry ice bath. The tissue was cryo-sectioned in a cryostat, at a thickness of 10 microns. Four different levels were cut (in triplicate) from the TA, 100 microns apart.
(340) Slide sections were quickly dipped into cold PBS and fixed in ice-cold acetone for 15 minutes. Slides were washed and blocked (2% BSA and 1% normal goat serum in PBS) overnight at 4° C. The next day, slides were incubated with anti-mIgG Alexa Fluor 488 (Invitrogen) at 1:100 dilution for 2 hours (room temperature). Slides were washed and mounted using Vectashield mounting media with DAPI (Vector Labs). Slides were visualized with an inverted microscope (Olympus IX71) utilizing appropriate filter sets.
(341) Evans Blue Dye (EBD) Myofiber Damage Evaluation
(342) Tissue sections were processed as above except without immunofluorescence staining. All EBD positive fibers on each section were counted manually for both the left TA (biAb IM) and right TA (monoclonal parent antibody IM).
(343) Results
(344) In order to determine whether biAbs are able to bind native antigens in mouse muscle tissues, unfixed frozen sections of wildtype or LARGE.sup.myd-3J/GrsrJ mice, which are a murine model for alpha-dystroglycanopathy, were stained with biAbs (T1T2, T5T6, C5C6) or parental mAbs. The results indicated that biAbs were able to bind as well as the monospecific parental mAbs in both wild-type (
(345) Bispecific antibodies were then intramuscularly administered to wildtype or LARGE.sup.myd-3J/GrsrJ mice (study outline is shown in
Example 5
Systematic Delivery of Bi-Specific Antibodies Into LARGE.SUP.myd-3J/GrsrJ .Mice
(346) Methods
(347) Antibody Delivery
(348) For exercise-induced tissue damage testing, four different groups of LARGE.sup.myd-3J/GrsrJ mice were intravenously injected with a single dose of parental or bispecific antibody (with murine Fc region) via the lateral tail vein (IV) or intraperitoneally (IP). Each group received one of the following: parental anti-LG-4/5 (clone C3, IV), parental anti-beta-DG (clone AS19, IV), biAb (AS19×C3, IV), and biAb (AS19×C3, IP). One day after the injection, all mice received intraperitoneal injections (IP) of Evans blue dye (EBD) at 10 mg/ml with 50 μl given per 10 g body weight.
(349) For behavioral testing, creatine kinase measurements, and biodistribution immunofluorescence experiments, LARGE.sup.myd-3J/GrsrJ mice (aged 11-19 weeks) were randomized into two groups (n=16) before treatment. One group of mice was dosed at 30 mg biAb (T1T2) per kg mouse twice a week for 7 weeks. The second group of mice was dosed with a mixture of parental monoclonal antibodies (AS19 and C3, 15 mg antibody per kg mouse each) twice a week for 7 weeks. To prevent anaphylactic reaction, 5 mg per kg of diphenhydramine was pre-dosed intraperitoneally 10 minutes before administration of antibodies. Wildtype mice were treated with saline as a control.
(350) Exercise-Induced Tissue Damage
(351) 1 day after intraperitoneal EBD injection, all mice were exercised via a forced treadmill until exhaustion. The animals were euthanized with CO.sub.2 according to the standard IACUC protocol.
(352) Behavioral Testing and Creatine Kinase Measurements
(353) For grip strength test, mice were allowed to acclimate to the testing room for 10 min before the test. The grip strength meter (Columbia Instruments, Columbus, Ohio) was mounted horizontally on a stable surface. The test mouse was gently placed on the top of the grid such that both of its front paws and hind paws were allowed to clasp onto the grid. The animal was then gently pulled backwards by its tail until the grip was released. The amount of force generated at the point of release was recorded on the strain gauge (grams). This procedure was performed 3 times for each animal and the grip force value was then calculated as the average of three tests.
(354) For wire hang test, each animal was put on a wire screen, which was gently shifted side to side until the animal grabbed the wire. The wire-screen was then lifted to about 2 feet above a cushion pad and turned upside down. The time (latency) of animal from falling off the wire screen to the cushion pad was recorded, with a maximum cut-off time of 60 seconds. Each animal was tested twice with resting time of at least 5 min between tests.
(355) Creatine kinase (CK) levels were measured at the beginning of the study (prior to bispecific antibody treatment) and at the end of the study (1 hr post-treadmill exercise after 7 weeks of bispecific antibody treatment) via standard colorimetric assay.
(356) Tissue Preparation and Immunofluorescence Staining
(357) For detection of bispecific antibodies in target organs, animals were euthanized 4 days after the last bispecific antibody intramuscular injection. TA muscles were removed, cut and placed in optimum cutting temperature compound. The tissue was then rapidly frozen via a 2-methyl butane dry ice bath. The tissue was cryo-sectioned in a cryostat, at a thickness of 10 microns.
(358) For exercise-induced tissue damage samples, TA muscles were removed, cut and placed in optimum cutting temperature compound after exercise. The tissue was then rapidly frozen via a 2-methyl butane dry ice bath. The tissue was cryo-sectioned in a cryostat, at a thickness of 10 microns. Four different levels were cut (in triplicate) from the TA, 100 microns apart.
(359) For both sets of tissue samples, slides were washed and blocked (2% BSA and 1% normal goat serum in PBS) overnight at 4° C. The next day, slides were incubated with anti-mIgG Alexa Fluor 488 (Invitrogen) at 1:100 dilution for 2 hours (room temperature). Slides were washed and mounted using Vectashield mounting media with DAPI (Vector Labs). Slides were visualized with an inverted microscope (Olympus IX71) utilizing appropriate filter sets.
(360) Evans Blue Dye (EBD) Myofiber Damage Evaluation
(361) Tissue sections were processed as above except without immunofluorescence staining. All EBD positive fibers on each section were counted manually for both the left TA (biAb IM) and right TA (monoclonal parent antibody IM).
(362) Results
(363) LARGE.sup.myd-3J/GrsrJ mice were dosed with 30 mg/kg of biAb (T1T2) and the parental antibodies as control, either by tail vein injection (IV) or intraperitoneally (IP) for comparison. Blood samples were collected by eye bleeding at 24, 48, 72, and 96 hrs after dosing, and the antibody levels were measured by ELISA coated with beta-DG (
(364) Bispecific antibodies were next administered IV to wildtype or LARGE.sup.myd-3J/Grsd mice. Behavioral testing revealed that LARGE.sup.myd-3J/GrsrJ mice that were administered bispecific antibodies performed better on the grip strength test and wire hang test (
(365) Despite poor performance in the treadmill test, LARGE.sup.myd-3J/GrsrJ mice treated with control antibody showed increased CK levels. Significant elevation of serum CK levels indicates acute muscle damage as the result of lacking sarcolemma protection. By the end of the study, creatine kinase levels were significantly lower for LARGE.sup.myd-3J/GrsrJ mice treated with bispecific antibodies compared to mice treated with monoclonal parental antibodies (
(366) To assess the effect of bispecific antibodies on exercise-induced tissue damage, Evans blue dye myofiber staining was performed on tissue from exercised mice. Evans blue dye penetrated many muscle fibers of LARGE.sup.myd-3J/GrsrJ mouse tissue treated with a mixture of parental antibodies, indicating exercise-induced damage since the dye only penetrates and stains muscle fibers with membrane damage. In contrast, Evans blue dye penetrated significantly fewer muscle fibers of LARGE.sup.myd-3J/GrsrJ mouse tissue treated with bispecific antibodies than that of mice treated with parental antibodies (
(367) For detection of bispecific antibodies in target organs, animals were euthanized 4 days after the last bispecific antibody intramuscular injection and immunofluorescence staining was performed. Staining revealed that even after 4 days, bispecific antibody T1T2 (AS19×C3) administered either by IV or intraperitoneally still specifically bound muscle tissue in the quadriceps, TA, diaphragm, and heart, but did not stain brain tissue, which was used as a negative control (
(368) The overall structure of the AS30 Fab bound to antigen beta-DG was determined, with the antigen shown between the heavy chain and light chain (
(369) In addition, the overall structure of the C21 Fab bound to antigen human laminin-2 LG-5 domain was determined, with the antigen shown between the heavy chain and light chain (
Example 6
Generation of Trivalent, Multispecific Antibodies Recognizing Beta-DG and Laminin-2
(370) Methods
(371) Antibody Humanization
(372) Humanization of the lead hybridoma antibodies was performed using both CDR grafting and 3D modeling techniques. Methods for antibody humanization are described in Jones et al., Nature 321: 522 (1986); Verhoeyen et al., Science 239: 1534 (1988); Sims et al., J Immunol 151: 2296 (1993); Chothia and Lesk, J Mol Biol 196: 901 (1987); Carter et al., Proc Natl Acad Sci USA 89: 4285 (1992); Presta et al., J Immunol 151: 2623 (1993); U.S. Pat. Nos. 5,589,205; 5,565,332; 6,180,370; 6,632,927; 7,241,877; 7,244,615; 7,244,832; 7,262,050; and U.S. Patent Publication No. 2004/0236078 (filed Apr. 30, 2004).
(373) Antibody Expression and Purification
(374) The aDG trivalent antibodies were constructed by creating mammalian expression vectors with heavy chain constant regions that contain the knob-in-hole, NNAS, YTE, and RF variants and light chain constant regions. DNA variable domains with the desired linkers were synthesized and inserted in the desired heavy or light chain vectors. The configuration of each triAb is shown in Table M (numbering of antigen binding domains according to diagram in
(375) TABLE-US-00019 TABLE M triAb configurations. triAb VH2/VL2 VH3/VL3 Name VH1/VL1 binding domain binding domain binding domain 3407 C3_Hu10 C3_Hu10 AS30_Hu6 3423 C3_Hu10 C21_Hu11 AS30_Hu6 3429 C3_Hu11 C21_Hu21 AS30_Hu6 3437 C21_Hu11 C3_Hu11 AS30_Hu6 3439 C21_Hu21 C3_Hu10 AS30_Hu6
(376) Trivalent antibodies were produced by transient cotransfection of four plasmids in Expi293F cells with Expifectamine (Thermo Fisher Scientific, A14635). Antibodies were purified with MabSelect SuRe columns (GE Healthcare, 11003494) followed by cation exchange with a HiTrap SP HP columns (GE Healthcare, 17115201). All proteins were then assessed for concentration, purity, and aggregation.
(377) Dual Binding of Antibodies to Human Antigens
(378) A dual binding sandwich ELISA was performed by coating Thermo Nunc Immobilized SA 96 well plates with either 2 ug/mL of biotinylated N′Avi-HPC4-human LG4/5 or biotinylated human-beta DG-HPC4-Avi-C′. After overnight incubation at 4° C., the plates were blocked with PBS+1% BSA+0.1% Tween for 1 hour at room temperature. After washing (BioTek ELx405 Select CW) with PBS, the trivalent or parental antibodies were added to the plate started at 8 ug/mL and a 2-fold dilution was performed across the plate, antibody was incubated for 1 hour at room temperature. After washing, the second antigen of beta-DG-mFc (
(379) For sequential dual binding of antigens to trivalent antibodies, a Series S Sensor Protein G chip (GE Healthcare, 29179315) was used with a T100 Biacore. This chip was used to immobilize trivalent or parental antibody to the surface (60 seconds with 5 ug/mL of antibody). After capture, 200 nM of LG4/5 was flowed over the chip for 60 seconds followed by 200 nM of beta-DG for 60 seconds. Binding to the trivalent antibody was observed by the change of mass detected on the chip in relative units (RU).
(380) Binding Kinetics Assay
(381) Surface plasmon resonance (“SPR;” T100 Biacore; GE Healthcare) kinetics assay data with the trivalent antibodies was performed by immobilizing the antibodies (10 ug/mL) onto a Sensor S Protein G chip and then flowing serial dilutions of antigen over the chip (LG4/5: 80 nM-1.25 nM, BDG: 5 nM-0.31 nM and 4 nM-0.25 nM). Data was evaluated with a 1:1 binding model using the BIAevaluation software.
(382) Results
(383) Trivalent antibodies (triAbs) were generated according to the format shown in
(384) To show binding of the triAbs to both antigens, a dual binding sandwich ELISA was performed as described above using 2 ug/mL of biotinylated N′Avi-HPC4-human LG4/5 (FIG. 14A) or biotinylated human-beta DG-HPC4-Avi-C′ (
(385) Additionally, surface plasmon resonance was performed to show sequential binding of the human laminin-2 and beta-DG antigens (
(386) SPR was used as described above to analyze the kinetics of triAb binding to laminin-2 (Table N) or beta-DG (Table O).
(387) TABLE-US-00020 TABLE N triAb binding to laminin-2 (SPR). ka (1/Ms) kd (1/s) KD (M) 3407 1.57E+06 3.26E−03 2.08E−09 3423 2.70E+06 4.33E−03 1.60E−09 3429 2.13E+06 4.04E−03 1.90E−09 3437 2.41E+06 4.50E−03 1.87E−09 3439 3.07E+06 4.00E−03 1.30E−09 AS30 Hu6 2.54E+06 2.02E−03 7.96E−10
(388) TABLE-US-00021 TABLE O triAb binding to beta-DG (SPR). ka (1/Ms) kd (1/s) KD (M) 3407 1.70E+05 2.53E−03 1.49E−08 3423 1.85E+05 2.28E−03 1.23E−08 3429 1.97E+05 2.19E−03 1.11E−08 3437 1.70E+05 2.31E−03 1.36E−08 3439 2.83E+05 2.89E−03 1.02E−08 C3 Hu11 1.19E+05 1.17E−03 9.83E−09 C21 Hu21 1.60E+05 1.44E−03 8.99E−09
(389) As shown in Table N, five triAbs were able to bind human beta-DG with nanomolar affinity (K.sub.D between 1.3-2.1 nM), comparable to that of the humanized AS30 antigen binding domain used in monovalent antibody format (0.8 nM). Similarly, Table O shows that the same triAbs were also able to bind human laminin-2 with nanomolar affinity (K.sub.D between 10.2-14.9 nM), comparable to those of the humanized C3 and C21 antigen binding domains used in monovalent antibody format (9.8 nM and 9.0 nM, respectively).
(390) These data demonstrate that bispecific anti-laminin-2/beta-DG antibodies in the trivalent format illustrated in
Example 7
Improvement of Muscle Functions of LARGE.SUP.myd-3J/GrsrJ .Mice on Behavioral Tests after Treatment with Trivalent, Multispecific Antibodies Recognizing Beta-DG and Laminin-2
(391) Methods
(392) Antibody Administration
(393) The LARGE/myd-3j mice described in Example 4 (ages at 8-16 weeks) were randomized into five groups based on their hind-leg splay score, wire-hang score, grip-strength and treadmill to ensure these scores were similar among groups (n=11) before treatment. Mice were then dosed at 30 mg/kg twice a week via tail vein injection (Monday and Thursday) with TriAbs (3407, 3437, and 3439) and a control TriAb that recognizes unrelated protein targets as well as a saline group as controls for up to 3.5 weeks with 7 doses. In addition, a wildtype mice group (n=6) was included as benchmarks for behavioral tests. To prevent anaphylactic reaction, 5 mg/kg diphenhydramine was pre-dosed IP 10 min before administration of antibodies. Grip-strength and wire-hang were tested weekly starting at week-2. Wildtype were treated with saline as benchmarks for various behavioral tests.
(394) Behavioral Testing
(395) For the hind-leg splay test, mice were lifted by their tails, and the positions of the hind legs relative to the body were recorded and graded.
(396) The wire-hang test was conducted by placing mice on a wire grid and acclimating for 1 min; then, the wire grid with the mouse grasping on was slowly turned upside down at a defined speed of 2 sec, and the time the mouse held onto the grid was recorded, with a cutoff time of 60 sec. The test was repeated 3 times for each mouse and the results averaged.
(397) Grip strength was evaluated by placing the mice on a Grip Strength Meter (Columbus Instruments), allowing the mouse to grasp the metal grid firmly, and pulling the tail horizontally until the mouse let go; then, the force was recorded. The test was repeated 5 times with a 1 min rest in between. Highest and lowest readings were removed for each mouse and the results were the average of the three remaining readings.
(398) For treadmill run time, mice were placed onto individual lanes of a treadmill equipped with an electric shocking grid (Model 1055SRM Exer-3/6, Columbus Instruments). The animals were acclimated to the treadmill for 5 min, and then the mice were tested with a defined protocol with increasing speed. When a mouse spent more than 3 sec on the shocking grid without being able to run, the shocking grid was turned off and the total run time was recorded.
(399) All behavioral tests were performed while blinded to mouse identity and treatment, with the results unblinded after testing.
(400) Results
(401) The triAbs generated in Example 6 were tested for their effects on muscle function in LARGE/myd-3j mice.
(402) Large/myd-3j mice showed significantly improved performance on grip-strength (
(403) Taken together, the results of multiple functional assays demonstrated that treatment with trivalent, bispecific anti-laminin-2/beta-DG antibodies led to improved muscle function in a murine model for alpha-dystroglycanopathy.
(404) While the present disclosure includes various embodiments, it is understood that variations and modifications will occur to those skilled in the art. Therefore, it is intended that the appended claims cover all such equivalent variations that come within the scope of the disclosure. In addition, the section headings used herein are for organizational purposes only and are not to be construed as limiting the subject matter described.
(405) Each embodiment herein described may be combined with any other embodiment or embodiments unless clearly indicated to the contrary. In particular, any feature or embodiment indicated as being preferred or advantageous may be combined with any other feature or features or embodiment or embodiments indicated as being preferred or advantageous, unless clearly indicated to the contrary.