Human immunodeficiency virus type 1 cell cycle control: Vpr is cytostatic and mediates G2 accumulation by a mechanism which differs from DNA damage checkpoint control

Abstract excerpt

Vpr is a 96-amino-acid protein encoded by human immunodeficiency virus type 1 (HIV-1) that prevents proliferation of infected cells. We have established a system for infection of 100% of a T-cell population with HIV and use this system to show that within the context of HIV-1 infection, Vpr is primarily cytostatic rather than cytotoxic. Vpr acts upstream of dephosphorylation of the mitotic cyclin-dependent...

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