title: Polymorphism of seminal gamma-glutamyl transpeptidase.
abstract: Electrophoretic analysis of seminal gamma-glutamyl transpeptidase (GGT) activity of 147 unrelated Japanese males revealed three types of band patterns. An anodal single band, a cathodal single band and heterozygous double bands termed 1, 2 and 2-1, respectively, were commonly identified in the samples. The frequencies of the three types were 1 = 0.22, 2 = 0.33 and 2-1 = 0.44. Seminal stains kept for more than 6 months revealed distinguishable band patterns as well as fresh samples.
mesh_terms: D004589:Electrophoresis, Disc; D006801:Humans; D008297:Male; D011110:Polymorphism, Genetic; D012661:Semen / Q000201:enzymology*; D005723:gamma-Glutamyltransferase / Q000032:analysis* / Q000235:genetics
chemical_list: D005723:gamma-Glutamyltransferase