title: A new minor histocompatibility locus linked to H-3.
abstract: B10, BALB.B, and A.BY shared an allele at a new locus not shared by B10.LP-H-3b. This locus is linked to the minor histocompatibility gene, H-3, in the 5th linkage group of chromosome 2 of the mouse. The product of the new gene fits the criteria of a minor histocompatibility antigen, since it induced as well as served as a target for cytotoxic lymphocytes (CTL) and its presence accelerated skin graft rejection when compared with that caused by H-3.1. F1 complementation of skin graft rejection and generation of CTL indicated that A.BY and BALB.B do not share H-3a with B10 as previously reported but possess the c allele of their congenic partners A and BALB/c. Thus, B10.LP-H-3b and B10 differ from one another by at least 2 minor histocompatibility loci. The specificity of CTL developed in B10. LP-H-3b and appropriate F1 hybrids indicate that the lytic activity of CTL specific for H-3.1 was restricted to target cells possessing H-2Kb antigens; this contrasted to the H-2Db-restricted activity of CTL specific for the product of the new gene.
mesh_terms: D000818:Animals; D002874:Chromosome Mapping; D003602:Cytotoxicity, Immunologic; D005260:Female; D008040:Genetic Linkage; D006085:Graft Survival; D006183:H-2 Antigens / Q000276:immunology; D006649:Histocompatibility Antigens / Q000235:genetics*; D008297:Male; D051379:Mice; D008805:Mice, Inbred A; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D014184:Transplantation, Homologous
chemical_list: D006183:H-2 Antigens; D006649:Histocompatibility Antigens