title: [Biochemical polymorphism of serum cholinesterase in populations of the Kurdamir region of the Azerbaijan SSR].
abstract: Examination of 933 schoolchildren in the Kyurdamir district of Azerbaijan for the carriage of abnormal variants of serum cholinesterase (EC 3.1.1.8.) revealed high biochemical polymorphism of the enzyme. This was conditioned by high frequencies of mutant alleles of the E1-E1a and E1s loci responsible for atypical and "silent" enzyme variants. The cases of confusions of phenotypes of different heterozygotes are being analyzed using the material on pedigrees. Two types of the normal alleles (E1u)--E1u1 and E1u2--were shown to be present in the population analyzed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000483:Alleles; D001382:Azerbaijan; D002802:Cholinesterases / Q000097:blood / Q000235:genetics*; D005787:Gene Frequency; D005819:Genetic Markers; D006579:Heterozygote; D006801:Humans; D009154:Mutation; D010375:Pedigree; D010641:Phenotype; D011110:Polymorphism, Genetic
chemical_list: D005819:Genetic Markers; D002802:Cholinesterases
vernacular_title: Biokhimicheskiĭ polimorfizm syvorotochnoĭ kholinésterazy v populiatsiiakh Kiurdamirskogo raĭona Azerbaĭdzhanskoĭ SSR.