title: Presence of T 145 on cytolytic T cell lines and their lectin-resistant mutants.
abstract: Murine cytolytic T cell lines have been analyzed for the expression of two surface glycoproteins called T145 and T130. T145, known to be expressed by activated cytolytic T cells, is also expressed by such lines, but T130, which has been described by a universal T cell marker, is not. Our results suggest a structural relationship between T145 and T130. Vicia villosa lectin, which binds selectively to T145 of activated T cells and which is cytotoxic for cytolytic T cell lines, has been used to select lectin-resistant mutants from these lines. Five independent lectin-resistant mutants have been obtained. All of them are cytolytically active, bind up to 100-fold less lectin than the parental lines, but still express T145 or a closely related glycoprotein.
mesh_terms: D000818:Animals; D001665:Binding Sites; D002460:Cell Line; D003602:Cytotoxicity, Immunologic; D004591:Electrophoresis, Polyacrylamide Gel; D006023:Glycoproteins; D037102:Lectins / Q000494:pharmacology*; D008565:Membrane Proteins / Q000235:genetics / Q000276:immunology*; D051379:Mice; D008806:Mice, Inbred AKR; D008807:Mice, Inbred BALB C; D009154:Mutation; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D006023:Glycoproteins; D037102:Lectins; D008565:Membrane Proteins