Abstract:
A genetically modified mouse is provided, wherein the mouse expresses an immunoglobulin light chain repertoire characterized by a limited number of light chain variable domains. Mice are provided that express just one or a few immunoglobulin light chain variable domains from a limited repertoire in their germline. Methods for making bispecific antibodies having universal light chains using mice as described herein, including human light chain variable regions, are provided. Methods for making human variable regions suitable for use in multispecific binding proteins, e.g., bispecific antibodies, and host cells are provided. Bispecific antibodies capable of binding first and second antigens are provided, wherein the first and second antigens are separate epitopes of a single protein or separate epitopes on two different proteins are provided.
Abstract:
The invention provides genetically modified non-human animals that express chimeric human/non-human MHC I polypeptide and/or human or humanized β2 microglobulin polypeptide, as well as embryos, cells, and tissues comprising the same. Also provided are constructs for making said genetically modified animals and methods of making the same. Methods of using the genetically modified animals to study various aspects of human immune system are provided.
Abstract:
The invention provides a genetically modified non-human animal that comprises in its genome unrearranged T cell receptor variable gene loci, as well as embryos, cells, and tissues comprising the same. Also provided are constructs for making said genetically modified non-human animal and methods of making the same. Various methods of using the genetically modified non-human animal are also provided.
Abstract:
Non-human animals, cells, methods and compositions for making and using the same are provided, wherein the non-human animals and cells comprise a humanized B-cell activating factor gene. Non-human animals and cells that express a human or humanized B-cell activating factor protein from an endogenous B-cell activating factor locus are described.
Abstract:
The present disclosure provides antibodies and antigen-binding fragments thereof that bind to human artemin. Methods for using anti-artemin antibodies and antigen-binding fragments are also provided.
Abstract:
Disclosed herein are nucleic acids encoding for and proteins expressing chimeric C1q polypeptides, non-human animals comprising said nucleic acids, and methods of making or using said non-human animals.
Abstract:
Multivalent antigen-binding proteins comprising two or three or four or more immunoglobulin heavy chain variable domain binding domains are provided, as are methods for making them, nucleic acid constructs, and cell lines for making them. Proteins comprising two or three or four or more different heavy chain variable domains that lack an immunoglobulin variable domain are provided. Proteins comprising two or three or four or more different heavy chain variable domains that associate with the same immunoglobulin light chain variable domain are also provided.
Abstract:
The invention provides genetically modified non-human animals that express a humanized MHC II protein (humanized MHC II α and β polypeptides), as well as embryos, cells, and tissues comprising the same. Also provided are constructs for making said genetically modified animals and methods of making the same. Methods of using the genetically modified animals to study various aspects of human immune system are provided.
Abstract:
A genetically modified non-human animal is provided, wherein the non-human animal expresses an antibody repertoire capable of pH dependent binding to antigens upon immunization. A genetically modified non-human animal is provided that expresses human immunoglobulin light chain variable domains derived from a limited repertoire of human immunoglobulin light chain variable gene segments that comprise histidine modifications in their germline sequence. Methods of making non-human animals that express antibodies comprising histidine residues encoded by histidine codons introduced into immunoglobulin light chain nucleotide sequences are provided.
Abstract:
Genetically modified non-human animals are provided that comprise an immunoglobulin heavy chain locus comprising an unrearranged human heavy chain variable region nucleotide sequence comprising an addition of at least one histidine codon or a substitution of at least one endogenous non-histidine codon with a histidine codon. Compositions and methods for making the genetically modified non-human animals as described herein are provided. Non-human animals capable of expressing an antigen-binding protein characterized by pH-dependent antigen binding, enhanced recyclability and/or enhanced serum half-life are also provided.