| CPC C07K 16/2809 (2013.01) [A61K 39/39541 (2013.01); A61P 35/00 (2018.01); C07K 16/28 (2013.01); C07K 16/2803 (2013.01); C07K 16/3069 (2013.01); A61K 2039/505 (2013.01); C07K 2317/21 (2013.01); C07K 2317/24 (2013.01); C07K 2317/31 (2013.01); C07K 2317/55 (2013.01); C07K 2317/92 (2013.01)] | 19 Claims |
|
1. A recombinant multispecific antibody comprising a first domain, wherein the first domain specifically binds CD3, a second binding domain wherein the second binding domain specifically binds a second antigen, and a third binding domain wherein the third binding domain specifically binds a third antigen, wherein the first binding domain comprises a heavy chain variable region (VH) and a light chain variable region (VL) of SEQ ID NOs: 652 and 661, respectively,
wherein the multispecific antibody is an IgG1 isotype and comprises substitutions comprising (i) L234A and L235A, (ii) T366S, L368A, and Y407V substitutions, and (iii) T366W, and
wherein residue numbering is according to the EU Index.
|