availability of gamma 1 , gamma 2b , and gamma 2a ig heavy chain variants directed against the same epitope on the monosialoganglioside antigen permitted detailed analysis of their fc fragment receptor ( fcr ) binding affinities , their cytolytic activities ( antibody-dependent , macrophage-mediated cytotoxicity ) in vitro , and their tumoricidal activities in vivo .
C0021027
ig
C0003241
antibody