title: Properdin factor B polymorphism in Afghanistan.
abstract: The distribution of properdin factor B (Bf) phenotypes and gene frequencies was studied in four populations of Afghanistan: Hazaras, Pushtoons, Tajiks and Usbeks. Significant differences between Usbeks and the other three ethnic groups were observed. The distribution of gene frequencies in Usbeks was similar to that of European populations.
mesh_terms: D000346:Afghanistan; D011415:Complement Factor B / Q000235:genetics*; D004792:Enzyme Precursors / Q000235:genetics*; D005006:Ethnicity; D005787:Gene Frequency; D006801:Humans; D010641:Phenotype; D011110:Polymorphism, Genetic
chemical_list: D004792:Enzyme Precursors; D011415:Complement Factor B