ArticleInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2011
Conflicting selection pressures on T-cell epitopes in HIV-1 subtype B.
Article in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 3 citations in OpenAlex.
- Immune activation promotes evolutionary conservation of T-cell epitopes in HIV-1.PLoS biology · 2013Article
- Mapping of positive selection sites in the HIV-1 genome in the context of RNA and protein structural constraints.Retrovirology · 2011Article
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2 authors at 1 institution in 1 country.
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Abstract
Analysis of population-level polymorphism in eight coding genes of human immunodeficiency virus type 1 (HIV-1) subtype B revealed evidence not only of past purifying selection, but also of abundant slightly deleterious nonsynonymous variants subject to ongoing purifying selection. Both CD4 and CTL epitopes showed an excess of nonsynonymous variants that were singletons (occurring in just one sequence) in our dataset. Overall, median gene diversities at polymorphic nonsynonymous sites were highest at sites located in neither CD4 nor CTL epitopes, while polymorphic nonsynonymous sites in CD4 epitopes revealed the lowest median gene diversity. Our results support the hypothesis that there is an evolutionary conflict between immune escape and functional constraint on epitopes recognized by host T-cells, and suggest that amino acid sequences of CD4 epitopes are subject to particularly strong functional constraint.
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