The 2.4G2 monoclonal antibody (Clone: 2.4G2)reacts specifically with mouse CD16 (FcγRIII) and CD32 (FcγRII). It has also been reported to react non-specifically via its Fc domain to FcγRI. The 2.4G2 antibody is commonly used in flow cytometry staining experiments to prevent non-specific binding of IgG to the FcγIII and FcγII, and possibly FcγI, receptors prior to staining with antigen specific primary antibodies.