Comparison of haplotypes of the major histocompatibility complex in the rat. I. The Ag-B7 (H-1g) and Ag-B8 (H-1k) haplotypes.

Two haplotypes of the major histocompatibility complex of the rat, Ag-B7 and Ag-B8, have been compared with known H-1 haplotypes using the F1 skin-graft test and the dextran haemagglutination test. Both of these Ag-B haplotypes were different from the known H-1 haplotypes and determined different private specificities. The Ag-B7 haplotype was denoted as H-1g and the Ag-B8 haplotype as H-1k. The complex structure of the serologically detected antigenic products of these haplotypes was determined by means of H-1 congenic lines.