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Despite their antiviral effect, the in vivo effect of interferons on HIV transmission is difficult to predict, because interferons also activate and recruit HIV-susceptible cells to sites of infection. HIV does not normally induce type I interferons in infected cells, but does if TREX1 is knocked down. Here, we investigated the effect of topical TREX1 knockdown and local interferon production on HIV...
The HIV-1 viral accessory protein Vif prevents the encapsidation of the antiviral cellular cytidine deaminases APOBEC3F and APOBEC3G by inducing their proteasomal degradation. In the absence of Vif, APOBEC3G is encapsidated and blocks virus replication by deaminating cytosines of the viral cDNA. APOBEC3G encapsidation has been recently shown to depend on the viral nucleocapsid protein; however, the...
The HIV-1 accessory protein Vif (virion infectivity factor) is required for the production of infectious virions by CD4 + lymphocytes. Vif facilitates particle infectivity by blocking the inhibitory activity of APOBEC3G (CEM15), a virion-encapsidated cellular protein that deaminates minus-strand reverse transcript cytosines to uracils. We report that HIV-1 Vif forms a complex with human APOBEC3G...
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