using horseradish peroxidase ( hrp ) -conjugated anti-mouse ( sub ) class ( igg2a , igg2b , igm ) antibodies and anti-rabbit class ( igg , igm ) antibodies and a double immunocytochemical staining technique for simultaneous demonstration of the enzymes ap and hrp , we were able to determine both the antigen specificity ( anti-tnp ) and the ( sub ) class of intracellular antibodies produced by individual antibody-forming cells in vivo .
C0021017
class
C0003241
antibody