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. 1991 Dec;65(12):7051–7055. doi: 10.1128/jvi.65.12.7051-7055.1991

Functional mapping of the human immunodeficiency virus type 1 Rev RNA binding domain: new insights into the domain structure of Rev and Rex.

E Böhnlein 1, J Berger 1, J Hauber 1
PMCID: PMC250826  PMID: 1942257

Abstract

Expression of human immunodeficiency virus type 1 (HIV-1) structural proteins requires the direct interaction of the viral trans-activator protein Rev with its cis-acting RNA sequence (Rev-response element [RRE]). A stretch of 14 amino acid residues of the 116-amino-acid Rev protein is sufficient to impose nucleolar localization onto a heterologous protein. Our results demonstrated that these same amino acid residues confer Rev-specific RRE binding to the heterologous human T-cell leukemia virus type I Rex protein. In addition, our results indicated that amino acids distinct from the nuclear localization signal are important for Rex-specific RRE RNA binding.

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Selected References

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