The Part of IgG That Binds Antigens Is

Question

The part of IgG that binds antigens is
A) FC
B) Fab
C) Constant part of the heavy chain
D) Constant part of the light chain
E) These proteins do not bind antigens

Accepted Answer

The part of IgG that binds antigens is the variable region of the antibody, which is found at the amino terminal end of both the heavy and light chains. This region is unique and specific to each antibody, allowing it to bind specifically to its corresponding antigen.