TABLE 1

Frequencies of variants within populations

PopulationNumber of genesHuman consensusAsp84GluAsp151CysVal92Met/ A942GArg163GlnArg67Gln/ Arg163GlnA942G
African500.580.00.00.00.00.00.42
East and Southeast Asiana1200.060.00.00.230.700.010.0
Indian400.880.00.00.00.070.00.05
Yakut100.300.00.00.100.600.00.0
American Indian100.00.00.00.01.000.00.0
European
    Red hair40.250.250.500.00.00.00.0
    Others80.880.00.000.130.00.00.0
  • a Includes 50 Chinese, four Japanese, four Mongolians, one Cambodian, one Vietnamese. All non-Chinese individuals, except one Japanese and one Mongolian, were homozygous for the Arg163Gln variant.