Abstract: Certain embodiments provide a fusion protein comprising an iduronate 2-sulfatase (IDS) amino acid sequence, an IDS variant amino acid sequence, or a catalytically active fragment thereof; and an anti-transferrin receptor (TfR) antibody as described herein, as well as methods of use thereof.

Abstract: Provided herein are proteins, which are capable of being transported across the blood-brain barrier (BBB) and comprise sulfoglucosamine sulfohydrolase (SGSH) enzyme-Fc fusion polypeptides. Certain embodiments also provide methods of using such proteins to treat Sanfilippo syndrome A.

Abstract: Provided herein are IL-2 muteins and IL-2 mutein Fc-fusion molecules that preferentially expand and activate T regulatory cells and are amenable to large scale production. Also provided herein are variant human IgG1 Fc molecules lacking or with highly reduced effector function and high stability despite lacking glycosylation at N297. Also, provided herein are linker peptides that are glycosylated when expressed in mammalian cells.

Abstract: Provided herein are IL-2 muteins, IL-2 mutein Fc-fusion molecules, anti-IL-2 antibodies, and complexes comprising an anti IL-2 antibody bound to an IL-2 cytokine that preferentially expand and activate T regulatory cells and are amenable to large scale production. Also provided herein are variant human IgG1 Fc molecules lacking or with highly reduced effector function and high stability despite lacking glycosylation at N297. Also provided herein are linker peptides that are glycosylated when expressed in mammalian cells. Also provided herein are methods of making and using the compositions of the present invention.

Abstract: The present invention relates to bispecific antigen binding proteins that are capable of binding to both the human CGRP receptor and the human PAC1 receptor. Pharmaceutical compositions comprising the bispecific antigen binding proteins as well as methods for producing them are also disclosed. Methods of using the bispecific antigen binding proteins to ameliorate or treat conditions associated with the two receptors, such as chronic pain, migraine, and cluster headache, are also described.

Abstract: Provided herein are proteins, which are capable of being transported across the blood-brain barrier (BBB) and comprise sulfoglucosamine sulfohydrolase (SGSH) enzyme-Fc fusion polypeptides. Certain embodiments also provide methods of using such proteins to treat Sanfilippo syndrome A.

Abstract: Provided herein are IL-21 muteins and fusion proteins comprising the same for use in methods of treating a disease. Related conjugates, nucleic acids, vectors, host cells, pharmaceutical compositions and kits are also provided herein. Methods of making the IL-21 muteins and fusion proteins comprising the same, as well as methods of treating a subject in need thereof, are provided by the present disclosure. Further provided are PD-1 antigen-binding proteins.

Abstract: GDF15 polypeptides, constructs comprising GDF15, and mutants thereof are provided. In various embodiments the GDF15 polypeptides, constructs comprising GDF15, and mutants thereof, can be of use in the treatment or ameliorating a metabolic disorder. In various embodiments the metabolic disease or disorder is type 2 diabetes, obesity, dyslipidemia, elevated glucose levels, elevated insulin levels and diabetic nephropathy.

Abstract: Provided herein are progranulin variants and fusion proteins that comprise a progranulin variant and an Fc polypeptide. Methods of using such proteins to treat progranulin-associated disorders (e.g., a neurodegenerative disease, such as frontotemporal dementia (FTD)) are also provided herein.

Abstract: In one aspect, bispecific proteins having the ability to specifically bind to both subdomain II of human HER2 and subdomain IV of human HER2 are provided. In another aspect, methods of treating a cancer or treating brain metastasis of a cancer using a bispecific protein that specifically binds to subdomain II and subdomain IV of human HER2 are provided.

Abstract: Provided herein are progranulin variants and fusion proteins that comprise a progranulin variant and an Fc polypeptide. Methods of using such proteins to treat progranulin-associated disorders (e.g., a neurodegenerative disease, such as frontotemporal dementia (FTD)) are also provided herein.

Abstract: Described herein are bispecific proteins specific for BAFF and B7RP1, nucleic acids encoding such proteins, methods of making such proteins, and uses for such proteins.

Abstract: Provided herein are proteins, which are capable of being transported across the blood-brain barrier (BBB) and comprise sulfoglucosamine sulfohydrolase (SGSH) enzyme-Fc fusion polypeptides. Certain embodiments also provide methods of using such proteins to treat Sanfilippo syndrome A.

Abstract: Provided herein are IL-21 muteins and fusion proteins comprising the same for use in methods of treating a disease. Related conjugates, nucleic acids, vectors, host cells, pharmaceutical compositions and kits are also provided herein. Methods of making the IL-21 muteins and fusion proteins comprising the same, as well as methods of treating a subject in need thereof, are provided by the present disclosure. Further provided are PD-1 antigen-binding proteins.

Abstract: Provided herein are PD-1 antigen-binding proteins and related nucleic acids, vectors, host cells, kits and pharmaceutical compositions. Methods of making PD-1 antigen-binding proteins and methods of treating a subject are further provided.

Abstract: Described herein are bispecific proteins specific for BAFF and B7RP1, nucleic acids encoding such proteins, methods of making such proteins, and uses for such proteins.

Abstract: The present application is directed to heterodimeric antibodies and methods of use.

Abstract: Provided herein are progranulin variants and fusion proteins that comprise a progranulin variant and an Fc polypeptide. Methods of using such proteins to treat progranulin-associated disorders (e.g., a neurodegenerative disease, such as frontotemporal dementia (FTD)) are also provided herein.

Abstract: The present invention concerns antigen binding proteins that bind TL1A, including bispecific antigen binding proteins (e.g., antibodies) to TL1A and TNF-?. Such bispecific antibodies can be in a tetrameric immunoglobulin format, in which one heavy chain-light chain pair of the antibody is directed to TL1A and the other to TNF-?. The bispecific antigen binding proteins may also be comprised in an IgG-scFv fusion, in which a conventional tetrameric antibody directed to one antigen is fused to a pair of single chain Fv units directed to the other. The bispecific antigen binding protein may also be comprised in an IgG-Fab fusion, in which a Fab molecule that binds to one antigen is fused to each heavy chain of a conventional tetrameric antibody directed to the other antigen. The invention further relates to uses of the anti-TL1A binding proteins and anti-TL1A/anti-TNF-? antigen binding proteins, and pharmaceutical formulations thereof.

Abstract: Provided herein are progranulin variants and fusion proteins that comprise a progranulin variant and an Fc polypeptide. Methods of using such proteins to treat progranulin-associated disorders (e.g., a neurodegenerative disease, such as frontotemporal dementia (FTD)) are also provided herein.