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Investigation of the effect of Staufen1 overexpression on the HIV-1 virus production

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In this study, we investigated how Staufen1 influences the HIV-1production. The overexpression of Staufen1 increased virus productionwithout any negative affect on the viral infectivity. Thisincrease was not caused by transcriptional activation; but byinfluencing post-transcriptional steps. Using multiple Gag proteinderivatives, we confirmed that the zinc-finger domains of theHIV-1 nucleocapsid (NC) are important for its interaction withStaufen1. We also found that Staufen1 colocalized in stressgranules with the mature form of the HIV-1 NC protein.

Abstract

In this study, we investigated how Staufen1 influences the HIV-1production. The overexpression of Staufen1 increased virus productionwithout any negative affect on the viral infectivity. Thisincrease was not caused by transcriptional activation; but byinfluencing post-transcriptional steps. Using multiple Gag proteinderivatives, we confirmed that the zinc-finger domains of theHIV-1 nucleocapsid (NC) are important for its interaction withStaufen1. We also found that Staufen1 colocalized in stressgranules with the mature form of the HIV-1 NC protein.

참고문헌 (28)

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