Polymorphism of the C1R subcomponent of the first complement component in Indonesians, Bangladeshis, Tibetans, South Africa blacks, South Africa whites, and Samoans

Genetic polymorphism of the C1R subcomponent of human complement component C1 was investigated in 105 Indonesians, 141 Bangladeshis, 186 Tibetans, 101 South Africa blacks, 100 South Africa whites, and 24 Samoans. These popula tion data fitted the Hardy-Weinberg equilibrium. A geographical dine of the C1R*1 frequency was observed in Japanese < Aboriginal Taiwanese < Chinese < Tibetans < Indonesians. The C1R*8, which was considered to be characteris tic of Japanese, was not found in the above population groups examined.