title: The pig histocompatibility system SLA: serological study on a group of antigenic specificities.
abstract: The report presents an analysis of a group of class I SLA reagents which were highly correlated within one cluster in a previous analysis. Further population and family studies, and selected purification of several of these reagents led to the identification of 4 distinct specificities, namely SLA A 15, B 18, C 1 and A 16. Three of them, SLA A 15, B 18 and C 1, are actually in strong linkage disequilibrium and represent the main SLA haplotype in the Large White breed. SLA A 16 is present essentially in the Landrace breeds. SLA A 16 displays a strong cross-reaction with SLA A 15 and there is another specificity in linkage disequilibrium with SLA A 16 which cross-reacts with SLA B 18. Altogether, the strong linkage disequilibrium and the high degree of cross-reactivity among the allelic products of the SLA complex explain the failure to detect the diversity of our reagents in previous studies.
mesh_terms: D000042:Absorption; D000818:Animals; D000961:Antilymphocyte Serum / Q000032:analysis / Q000235:genetics / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes / Q000235:genetics*; D005260:Female; D005602:France; D005828:Genetics, Population; D006649:Histocompatibility Antigens / Q000235:genetics* / Q000276:immunology; D008297:Male; D013552:Swine / Q000235:genetics*
chemical_list: D000961:Antilymphocyte Serum; D000939:Epitopes; D006649:Histocompatibility Antigens