title: Demonstration of multiple antigenic sites of the SV40 transplantation rejection antigen by using cytotoxic T lymphocyte clones.
abstract: Multiple antigenic sites on the simian virus 40 (SV40) tumor-specific transplantation antigen (TSTA) were detected by the use of cytotoxic T lymphocyte (CTL) clones isolated from continuous cultures of SV40-specific CTL (H-2b). Two independently derived clones, K11 and K19, specific for the SV40 TSTA in association with H-2Db, each recognized a different antigenic determinant of the SV40 TSTA. This conclusion was based on the observation that a human papovavirus BK virus (BKV) transformed cell line, which possesses a T antigen serologically cross-reactive with that of SV40, was lysed by a heterogeneous population of SV40-immune lymphocytes and by clone K19 but not by K11. Therefore, these CTL clones must recognize two different antigenic determinants of the SV40 TSTA:K19 recognizes a cross-reactive determinant of the SV40 and BKV TSTA, whereas K11 is reactive against an SV40-specific determinant.
mesh_terms: D000956:Antigens, Viral / Q000276:immunology*; D000957:Antigens, Viral, Tumor; D002999:Clone Cells / Q000276:immunology; D003602:Cytotoxicity, Immunologic; D000939:Epitopes; D006183:H-2 Antigens / Q000276:immunology; D011948:Receptors, Antigen, T-Cell / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*
chemical_list: D000956:Antigens, Viral; D000957:Antigens, Viral, Tumor; D000939:Epitopes; D006183:H-2 Antigens; D011948:Receptors, Antigen, T-Cell