Distribution of Hp, Tf, Gc and Pi Polymorphisms in a Japanese Population Sample from San-in District

Abstract

Distribution of Hp, Tf, Gc and Pi systems was studied in 225 serum samples from a Japanese population in the central region of San-in District of Japan. The frequencies of Hp¹, Tf^C1 and Pi^M1 alleles were found to be somewhat but not significantly low as compared with other Japanese populations. A new variant type of Gc was observed to be located between the Gc 1S and 1C2 bands. The obtained gene frequencies are as follows: Hp¹=0.2183, Hp²=0.7817; Tf^C1=0.7448, Tf^C2=0.2456, Tf^Var=0.0096; Gc^1F=0.4411. Gc^1S=0.2823, Gc²=0.2645, Gc^1A2=0.0121; Pi^M1=0.6742, Pi^M2=0.2793, Pi^M3=0.0465.