both antibodies immunoprecipitated a major polypeptide ( apparent molecular weight approximately 240,000 ) and a minor polypeptide ( apparent molecular weight approximately 415,000 ) from lysates of 125i surface-labeled human ec cells , in this respect resembling another monoclonal antibody , 8-7d , previously described by blaineau et al .
C0003241
antibodies
C0003250
monoclonal antibody