Incorporation of Vpr into human immunodeficiency virus type 1 requires a direct interaction with the p6 domain of the p55 gag precursor.

Abstract excerpt

The 96-amino acid Vpr protein is the major virion-associated accessory protein of the human immunodeficiency virus type 1 (HIV-1). As Vpr is not part of the p55 Gag polyprotein precursor (Pr55(gag)), its incorporation requires an anchor to associate with the assembling viral particles. Although the molecular mechanism is presently unclear, the C-terminal region of the Pr55(gag) corresponding to the p6 domain...

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