Electrotypes and formal genetics of red cell glutathione peroxidase (GPX1) in the Djuka of Surinam.

Abstract:

:Samples of venous blood from 239 male and 476 female adults including 41 pairs of parents and 123 of their children belonging to a Surinam population called the Djuka or Bush Negroes of West African origin were screened for electrophoretic variants of red cell glutathione peroxidase (GPX1) in Cellogel. The results confirmed an earlier hypothesis that at least a part of the GPX1 variation mainly, if not exclusively, observed in the Africans and people of African origin living elsewhere, is determined by two codominant alleles (called GPX1*1 and GPX1*2), at an autosomal locus. The frequency of GPX1*2 allele in the Djuka was estimated to be .054. A rare variant provisionally designed as GPX1 Djuka (thought to be a heterozygote due to a third allele called GPX1*3 and the GPX1*1) was found in two apparently unrelated individuals. Catalytically, the product of GPX1*2 appears to be about twice more active than that of GPX1*1. For heuristic purposes, it was proposed and discussed that GPX1*2 is a South-Saharan African allele and is amenable for natural selection.

journal_name

Am J Hum Genet

authors

Meera Khan P,Verma C,Wijnen LM,Wijnen JT,Prins HK,Nijenhuis LE

subject

Has Abstract

pub_date

1986-05-01 00:00:00

pages

712-23

issue

5

eissn

0002-9297

issn

1537-6605

journal_volume

38

pub_type

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