Polymorphism of γ-aminobutyric Acid Transaminase (GABAT) in Japanese

Abstract

Polymorphism of γ-aminobutyric acid transaminase (GABAT) was investigated in a total of 75 liver samples from unrelated Japanese using a orizontal starch gel electrophoresis. Three common phenotypes were observed, which corresponded to GABAT 1, GABAT 2-1, and GABAT 2, controlled by two alleles, GABAT¹ andGABAT². The estimated allele frequencies of GABAT¹ and GABAT² were 0.547 and 0.453, respectivly. This result was not significantly differerent of European samples reported by JEREMIAH and POVEY (1981).