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Am J Hum Genet. 1976 Jul;28(4):390-9.

HLA antigens in Japanese populations.


HLA antigens in 841 healthy, unrelated Japanese from nine widely separated geographic localities were studied. The five most common antigens observed in order of decreasing frequency were for the HLA-A locus: HLA-A9, A2, A10, AW32 and A11; and for the HLA-B locus: HLA-'B5' (= HLA-B5+B17), BW40, B12, B14 and B8. The allelic frequency of undetected antigens of the HLA-A locus was .14-.37, and that of the HLA-B locus, .32-.67, indicating that there were serological difficulties in typing for Japanese antigens using antisera from Caucasians. Marked gene frequency clines were observed for HLA-A9 and HLA-A2 from south (Okinawa) to north (Nagoya). Two haplotypes, HLA-A9, B5 and HLA-A10, BW40 were shown to be in linkage disequilibrium in four of the nine subpopulations.

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