Antigens, CD5

CD5 Antigen; Leu-1 Antigen; T1 Antigen; Antigen, CD5; Leu 1 Antigen
Glycoproteins expressed on all mature T-cells, thymocytes, and a subset of mature B-cells. Antibodies specific for CD5 can enhance T-cell receptor-mediated T-cell activation. The B-cell-specific molecule CD72 is a natural ligand for CD5. (From Abbas et al., Cellular and Molecular Immunology, 2d ed, p156)