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- W2738451968 abstract "ABSTRACT The HIV-1 envelope protein mutates rapidly to evade recognition and killing, and is a major target of the humoral immune response and in vaccine development. Identification of common antibody epitopes for vaccine development have been complicated by large variations on both virus (different infecting founder strains) and host genetic levels. We studied HIV-1 envelope gp120 evolution in 12 Chinese former plasma donors infected with a purportedly single founder virus, with the aim of identifying common antibody epitopes under immune selection. We found five amino acid sites to be under significant positive selection in ≥50% of the patients, and 22 sites housing mutations consistent with antibody-mediated selection. Despite strong selection pressure, some sites housed a limited repertoire of amino acids. Structural modelling revealed that most sites were located on the exposed distal edge of the Gp120 trimer, whilst wholly invariant sites clustered within the centre of the protein complex. Four sites, flanking the V3 hypervariable loop of the Gp120, represent novel antibody epitopes that may be suitable as vaccine candidates." @default.
- W2738451968 created "2017-07-31" @default.
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- W2738451968 date "2017-07-24" @default.
- W2738451968 modified "2023-09-26" @default.
- W2738451968 title "Distinct antibody-mediated selection in a narrow-source HIV-1 outbreak among Chinese former plasma donors" @default.
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- W2738451968 doi "https://doi.org/10.1101/167510" @default.
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