Phenotypic diversity of the CD45 antigen and its relationship to function

Abstract

Monoclonal antibodies (mAbs) have identified further heterogeneity within the major CD4 and CD8 T-lymphocyte subsets. Antibodies to different polypeptides of the CD45 complex separate two largely non-overlapping subsets that may represent stages in the maturation of T cells or separate functionally distinct subsets.