Abstract:HIV-1 Envelope (Env) conformation determines the susceptibility of infected CD4+ T cells to Antibody Dependent Cellular Cytotoxicity (ADCC). Upon interaction with CD4, Env adopts more open conformations, exposing ADCC epitopes. HIV-1 limits Env-CD4 interaction and protects infected cells against ADCC by downregulating CD4 via Nef, Vpu and Env. Limited data exists however of the role of these proteins in downmodulating CD4 on infected macrophages and how this impacts Env conformation. While Nef, Vpu and Env are… Show more
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