A "new" HLA-C specificity, CSH-2, restricted to Oriental populations

The polymorphism of HLA antigens in the Chinese

Remarkable differences were observed in antigen frequencies (AF), gene frequencies (GF) and haplotype frequencies (HF) when 2441 healthy Chinese individuals representing nine different ethnic groups and living in 14 different geographic locations were examined for the genetic distribution of the various HLA Class I and II markers. A sizable number of individuals of each ethnic group within each of the three major categories of the Chinese population, namely, Hans, Mongols, and Southern minorities, have been studied here, providing useful population statistics for applications such as determination of probabilities of paternity, comparisons for HLA and disease associations, and anthropologic studies.

A new specificity, SH7 (Bw75), defined by antisera produced by planned immunization

SH7 specificity was defined by a group of antisera developed in Shanghai, China by planned immunization. SH7 antibody is cross-reactive with B5 and B15, as demonstrated by the serological reaction patterns obtained during planned immunization. Using 9th and 10th International Histocompatibility Workshop sera, we were able to confirm SH7, TS-1 and B15Kemp as identical specificities. They are equivalent to BW62S and B15Short-Thai. In view of the cross-reaction patterns obtained during planned immunization, SH7 appears to belong to the B5, B15, B35 and Bw70 cross-reactive groups.