Described herein are novel compositions comprising, for example, PDCL3 polypeptides having VEGFR-2 inhibitory activity, inhibitory PDCL3 antibodies and PDCL3-binding fragments thereof, or PDCL3 inhibitory nucleic acid molecules, and methods of their use in anti-angiogenesis and anti-tumor proliferation and invasiveness therapies, such as the treatment of cancer, as well as the treatment of those vascular diseases where pathological angiogenesis plays a role, such as in carotid artery disease, macular degeneration, and plaque neovascularization. Also described herein are novel compositions comprising engineered PDCL3 polypeptides having enhanced chaperone activity, recombinant cells comprising such engineered PDCL3 polypeptides having enhanced chaperone activity, and methods thereof for therapeutic protein production and in vitro protein synthesis.

The present invention provides DNA vaccines for the treatment of allergies. The vaccines comprise the coding sequence for one or more allergenic epitopes, and preferably the full protein sequence, of the allergenic protein from which the epitope(s) is derived, fused inframe with the lumenal domain of the lysosomal associated membrane protein (LAMP) and the targeting sequence of LAMP. The vaccines allow for presentation of properly configured three dimensional epitopes for production of an immune response. The vaccines can be multivalent molecules, and/or can be provided as part of a multivalent vaccine containing two or more DNA constructs.

Novel materials and methods useful for expressing heterologous proteins in prokaryotic cells are provided, including prokaryotic cells expressing FkpA and/or Skp.

Disclosed herein are FGF23 c-tail fusion proteins, pharmaceutical compositions comprising the FGF23 c-tail fusion proteins, and methods of treatment using the FGF23 c-tail fusion proteins. This application discloses fusion proteins comprising a FGF-23 c-tail protein fused to a heterologous amino acid sequence, wherein said fusion protein modulates serum phosphate levels but does not substantially modulate serum 1, 25 VitD levels. In some embodiments, the FGF-23 c-tail protein is fused to the heterologous amino acid sequence via a linker. This invention also encompasses vectors comprising the nucleic acids disclosed herein, and a host cell comprising the vector or polynucleotides encoding the proteins of the invention.

The invention relates to multimers such as tetramers of polypeptides and tetramers and octamers of effector domains, such as antigen binding sites (eg, antibody or TCR binding sites that specifically bind to antigen or pMHC, or variable domains thereof) or peptides such as incretin, insulin or hormone peptides.

Modified glucagon-like peptide (GLP1) fusion proteins with modified GLP1 polypeptides and related methods of use are described. Aspects of the disclosure further relate to fusion proteins that are GLP1 receptor agonists with a modified GLP1 fused to a stabilizing domain such as an extra cellular domain or antibody. Fusion proteins with modified GLP1 that are useful for treating or ameliorating a symptom or indication of a blood sugar disorder such as obesity and diabetes are also provided.

This disclosure provides peptides, polypeptides, fusion polypeptides, compositions, and methods for enhancing or increasing the stability of a polypeptide (e.g., Taq polymerase). Such peptides, polypeptides, fusion polypeptides, or compositions include polypeptides linked to a peptide tag that enhances the stability of the polypeptide. The peptides, polypeptides, fusion polypeptides, compositions may also enhance the activity, specificity, and/or fidelity of other polypeptides in a reaction mixture. The disclosure also provides methods of using such peptides, polypeptides, fusion polypeptides, compositions.

The inventive subject matter relates to a construct comprising antigens derived from multiple enterobacteria including Campylobacter jejuni capsule polysaccharide polymer, enterotoxigenic Escherichia coli recombinant polypeptide construct and lipopolysaccharide from Shigella spp. The subject invention also relates to a method of inducing an immune response utilizing the inventive composition.

The invention concerns a fusion polypeptide comprising several molecules of folding helper polypeptides, comprising one multimerization domain, in particular Skp, and at least one molecule of SlyD or SlpA, wherein no further target polypeptide sequences are fused to said fusion polypeptide. The invention further concerns an immunoassay and the use of said fusion polypeptide in an immunoassay for reduction of interferences or minimizing false positive results or for stabilizing proteinaceous assay reagents. Further the invention concerns a reagent kit for use in an immunoassay comprising said fusion polypeptide.

Fusion proteins comprising a protein expression enhancing polypeptide linked to a target protein binding domain and nucleic acid molecules encoding such fusion proteins are described for use in enhancing expression and/or location of a targeted protein of interest, for restoring lost functions in cells, and for treating disease. Additional fusion proteins comprising a target protein of interest modified with a fusion partner comprising a protein expression enhancing polypeptide are also disclosed.