| 摘要 |
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. |
| 主权项 |
1. A mouse that expresses
a single rearranged human immunoglobulin light chain variable (VL) region derived from a rearranged germline variable region sequence that comprises a human VL gene segment derived from a human Vκ3-20 gene segment and a human immunoglobulin heavy chain variable (VH) region cognate with said VL region wherein the VH region comprises a human VH segment derived from a segment selected from VH6-1, VH1-2, VH1-3, VH2-5, VH3-7, VH1-8, VH3-9, VH3-11, VH3-13, VH3-15, VH1-18, VH3-20, VH3-21, VH3-23, VH1-24, VH2-26, VH4-28, VH3-30, VH4-31, VH3-33, VH4-34, VH4-39, VH3-43, VH1-46, VH3-48, VH3-49, VH5-51, VH3-53, VH1-58, VH4-59, VH4-61, VH3-64, VH3-66, VH1-69, VH2-70, VH3-72, and VH3-73. |
