Disclosed herein are immunoglobulin fusion proteins comprising a first antibody region, a first therapeutic agent, and a first connecting peptide; wherein the first therapeutic agent is attached to the first antibody region by the connecting peptide; and wherein the connecting peptide does not comprise a region having beta strand secondary structure. The connecting peptide may comprise an extender peptide. The extender peptide may have an alpha helical secondary structure. The connecting peptide may comprise a linker peptide. The linker peptide may not comprise any secondary structure. Also disclosed herein are compositions comprising the immunoglobulin fusion proteins and methods for using the immunoglobulin fusion proteins for the treatment or prevention of a disease or condition in a subject.

Provided herein is technology relating to immunotherapy and particularly, but not exclusively, to compositions, methods, and kits for immunotherapy and activation of T cells using a peptide-major histocompatibility complex (pMHC) assembled on a protein scaffold for patterned signal presentation of T cell activating ligands to T cells.

Provided herein are methods and compositions relating to adenosine A2A receptor libraries having nucleic acids encoding for a scaffold comprising an adenosine A2A binding domain. adenosine A2A receptor libraries described herein encode for immunoglobulins such as antibodies.

Provided herein are methods and compositions relating to glucagon-like peptide-1 receptor (GLP1R) libraries having nucleic acids encoding for immunoglobulins that bind to GLP1R. Libraries described herein include variegated libraries comprising nucleic acids each encoding for a predetermined variant of at least one predetermined reference nucleic acid sequence. Further described herein are protein libraries generated when the nucleic acid libraries are translated. Further described herein are cell libraries expressing variegated nucleic acid libraries described herein.

The present disclosure provides antibody cytokine engrafted proteins that bind to and stimulate intracellular signaling through interleukin 10 receptor. Provided antibody cytokine engrafted proteins find use in enhancing anti-inflammatory cell responses, and reducing pro-inflammatory effects in the treatment, amelioration and prophylaxis of immune related disorders. Additionally provided are polynucleotides and vectors that encode antibody cytokine engrafted proteins and host cells capable of producing antibody cytokine engrafted proteins, as well as methods of combining antibody cytokine engrafted proteins with other therapeutics in treating immune related disorder.

A pharmaceutical comprising a therapeutic protein that binds to a therapeutic target, the protein being modified with a compound that inhibits binding of the protein to the therapeutic target, the modified protein being effective for reducing an immune response against the protein and for producing a therapeutic effect by binding to the therapeutic target. The therapeutic protein may be an antibody that includes an antibody combining site that binds to the therapeutic target.

The invention relates to specific binding members that bind CD137. The specific binding members comprise a CD137 antigen-binding site located in a constant domain of the specific binding member and find application in the treatment of cancer and infectious diseases, for example.

Disclosed herein is a dual binding moiety that comprises non-CDR loops for masking the binding of a domain, such as a target antigen binding domain to its target, by steric occlusion and specific masking, and CDRs for binding bulk serum proteins. Pharmaceutical compositions comprising the dual binding moiety disclosed herein and methods of using such compositions are further provided.

Antitumor antagonists that bind specifically to immune checkpoint regulators, angiogenesis pathway regulators and/or TGF pathway regulators are disclosed. Also disclosed are methods for treating proliferative disorders, infections, and immunological disorders with the antitumor antagonists described herein.

The purpose of the present invention is to provide an artificial protein having a bioactive peptide fused with a site, of a protein having at least an antigen binding region of an antibody, present in a folded portion of a secondary structure in a structural region having an antigen-binding activity and exposed on a surface of the protein.