Patent ID: 9266967
Filing Date: 2016-02-23
CPC Classification: C07K

Claim Text:
1. A bivalent, bispecific antibody, comprising: a) the light chain and heavy chain of an antibody specifically binding to a first antigen; and b) the light chain and heavy chain of an antibody specifically binding to a second antigen, wherein: within the light chain of the antibody which binds to said second antigen, the variable light chain domain VL is replaced by the variable heavy chain domain VH of said antibody and the constant light chain domain CL is replaced by the constant heavy chain domain CH1 of said antibody; and, within the heavy chain of the antibody which binds to said second antigen, the variable heavy chain domain VH is replaced by the variable light chain domain VL of said antibody, and the constant heavy chain domain CH1 is replaced by the constant light chain domain CL of said antibody.