HLA polymorphisms in a Han Chinese population of Sichuan.

This study reports the phenotype frequencies (PF) and gene frequencies (GF) of a homogeneous Sichuan Han Chinese population by typing of unrelated 229 individuals and 16 families for HLA-A, B, C., DR and DQ antigens. The frequencies of Bw67, Bw71, DRwl2, DRwl3 and DRwl4 are the first to be reported in Chinese. The two-locus haplotypes with significant linkage disequilibrium among the Sichuan have also been listed.