hybridomas producing monoclonal antibodies ( mab ) specific for immunoglobulin heavy chain ( igh ) allotype-linked gene products expressed only on functional t cells but not on b cells and macrophages were established by fusion of allotype congenic sjl ( igh-1b ) and sja /9 ( igh-1a ) b cells immunized reciprocally with partner spleen cells with a myeloma p3-x63-ag8-653 of balb/c origin .
C0004561
b cells
C0026764
myeloma