to characterize these b cell lymphocytotoxins we have used a mouse monoclonal anti-dr antibody ( l227 ) that inhibits cytotoxicity of antibodies against hla-dr antigens and a chicken serum against human ia-like antigens that also inhibits antibodies against dr-related supertypic determinants and other class ii histocompatibility antigens .
C0019764
hla-dr antigens
C0019754
human ia-like