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. 1990 Feb;64(2):742–747. doi: 10.1128/jvi.64.2.742-747.1990

Mutational analysis of the human immunodeficiency virus type 2 (HIV-2) genome in relation to HIV-1 and simian immunodeficiency virus SIV (AGM).

R Shibata 1, T Miura 1, M Hayami 1, K Ogawa 1, H Sakai 1, T Kiyomasu 1, A Ishimoto 1, A Adachi 1
PMCID: PMC249168  PMID: 2296082

Abstract

We constructed an infectious molecular clone of the human immunodeficiency virus type 2 (HIV-2) and generated nine frameshift mutants corresponding to nine open reading frames identified so far. Three structural (gag, pol, env) and two regulative (tat, rev) gene mutants were not infectious, whereas vif, vpx, vpr, and nef genes were dispensable for infectivity. All of the mutants except env and rev were cytopathic in CD4+ human leukemia cells. In transfection assays, the expression of HIV-2 long terminal repeat was activated by infectious clones of HIV-1, HIV-2, and simian immunodeficiency virus from African green monkey but not by the tat mutants. However, an HIV-2 tat mutant could produce small amounts of virus proteins and particles in contrast to a rev mutant, which directed no detectable synthesis of virus proteins and virions.

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Selected References

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