Article
"Ground truth" for selection on CCR5-Delta32.
Trends in genetics : TIG - 1 Jun 2006
Hedrick Philip W, Verrelli Brian C
Abstract excerpt
A much-celebrated story of positive selection in the human genome is the 32-bp deletion in the chemokine receptor CCR5, a variant that confers resistance to AIDS. This variant was postulated to be a relatively recent response to plague or smallpox. New research shows that the frequency of CCR5-Delta32 in Bronze Age samples is similar to that seen today, pushing the observed age of the allele back to at least 3000...
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