title: [Studies on polymorphism of C6 in Han nationality of China].
abstract: The polymorphism of C6 in three groups of Han nationality was investigated by using polyacrylamide gel isoelectric focusing and immunoblotting technique. The gene frequencies obtained are as follows: Zhangzhou City (Fujiang Province) C6*A:0.4634, C6*B:0.5000, C6*R:0.0366 (C6*B2:0.0317); Chendu City (Sichuan Province) C6*A:0.4975, C6*B:0.4480, C6*R:0.0545 (C6*B2:0.0396); Harbin City (Heilongjiang Province) C6*A:0.4708, C6*B:0.5219, C6*R:0.0073 (C6*B2:0.0073). The frequency of C6*A in Mongoloid populations is usually lower than 0.5, while that of black people ranges between 0.5 and 0.6 and that of white people is higher than 0.6. The other difference between Caucasian and Mongoloid is that the former has very few C6*B2 while the frequency of C6*B2 in the latter ranges from 0.03 to 0.07.
authors: Institute of Genetics, Academia Sinica, Beijing.
authors: Z
authors: Z
authors: Zhang
authors: R F
authors: RF
authors: Du
mesh_terms: D044466:Asian People; D002681:China; D003183:Complement C6 / Q000235:genetics*; D005006:Ethnicity; D005787:Gene Frequency; D006801:Humans; D007525:Isoelectric Focusing; D011110:Polymorphism, Genetic
chemical_list: D003183:Complement C6