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  • Title: Functional mapping of the rev-responsive element of human immunodeficiency virus type 2 (HIV-2): influence of HIV-2 envelope-encoding sequences on HIV-1 gp120 expression in the presence or absence of Rev.
    Author: Paulous S, Emerman M, Keller R, Montagnier L, Cordonnier A.
    Journal: J Gen Virol; 1992 Jul; 73 ( Pt 7)():1773-80. PubMed ID: 1629702.
    Abstract:
    The human immunodeficiency virus type 1 (HIV-1) regulatory protein Rev stimulates expression of structural viral proteins via a target response element (RRE) located within gag-pol and env mRNAs. To analyse the HIV-2 Rev trans-activation effect on the expression of the envelope protein, we cloned a functionally active HIV-2 rev cDNA and showed that it contained four exons. Using transient expression assays, we mapped a 353 bp RRE fragment within the env gene of HIV-2 on which both HIV-1 and HIV-2 Rev could act. Interestingly, smaller fragments suppressed the use of additional splice sites within the env gene and caused envelope protein expression independent of Rev.
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