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Updated: Sep 30, 2026

Isolation of Fidelity Variants of RNA Viruses and Characterization of Virus Mutation Frequency
Published on: June 16, 2011
[Population features of gene mutation frequency of the CKR-5 receptor, determining sensitivity to the AIDS virus]
1Ott Institute of Obstetrics and Gynecology, Russian Academy of Medical Sciences, St. Petersburg, Russia.
Abstract:
Recently, it was shown that a 32-bp deletion in the CKR5 macrophage chemokine receptor gene produced resistance to HIV infection. Frequencies of the CKR5 mutant allele in Russians, Tatars, Uzbeks, Kazakhs, Azerbaijanis, Uigurts, Tuvinians, and Georgians estimated by means of the PCR technique were equal to 0.13, 0.12, 0.85, 0.06, 0.05, 0.04, 0.03, and 0.00, respectively. While the theoretically expected frequency of deletion homozygotes in Russians and Tatars was 1.7%, none of such homozygotes were detected among the 90 persons examined. The data suggested that about 25% of the population in northwestern Russia is highly resistant to HIV infection.
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