title: Genetic polymorphisms of C3 and Bf in the Chinese population.
abstract: The distribution of C3 and Bf in a Chinese population sample has been investigated. In a total of 388 individuals, 385 SS and 3 FS C3 phenotypes were observed and the following gene frequencies calculated: C3F = 0.0039, C3S = 0.9961. In 200 unrelated individuals, 155 S, 38 FS, 6 F and 1 FS 0.7 Bf phenotypes were found. The gene frequencies calculated from these were BfS = 0.8700, BfF = 0.1275, BfS0.7 = 0.0025.
mesh_terms: D044466:Asian People; D002681:China; D003176:Complement C3 / Q000235:genetics*; D011415:Complement Factor B / Q000235:genetics*; D004792:Enzyme Precursors / Q000235:genetics*; D005787:Gene Frequency; D006801:Humans; D010641:Phenotype; D011110:Polymorphism, Genetic
chemical_list: D003176:Complement C3; D004792:Enzyme Precursors; D011415:Complement Factor B