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)

Synonyms: 0, Antigens, CD5, Antigen, CD5, CD5 Antigens, Leu 1 Antigen, Leu-1 Antigen, CD5 Antigen, T1 Antigen