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- W2059483766 abstract "The Gag–Pol polyprotein of the human immunodeficiency virus type 1 (HIV-1) is the precursor of the virus enzymatic activities and is produced via a programmed −1 translational frameshift. In this study, we altered the frameshift efficiency by introducing mutations within the slippery sequence and the frameshift stimulatory signal, the two elements that control the frameshift. These mutations decreased the frameshift efficiency to different degrees, ranging from ∼0.3% to 70% of the wild-type efficiency. These values were mirrored by a reduced incorporation of Gag–Pol into virus-like particles, as assessed by a decrease in the reverse transcriptase activity associated to these particles. Analysis of Gag processing in infectious mutant virions revealed processing defects to various extents, with no clear correlation with frameshift decrease. Nevertheless, the observed frameshift reductions translated into equivalently reduced viral infectivity and replication kinetics. Our results show that even moderate variations in frameshift efficiency, as obtained with mutations in the frameshift stimulatory signal, reduce viral replication. Therapeutic targeting of this structure may therefore result in the attenuation of virus replication and in clinical benefit." @default.
- W2059483766 created "2016-06-24" @default.
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- W2059483766 date "2006-02-01" @default.
- W2059483766 modified "2023-10-16" @default.
- W2059483766 title "Decreasing the frameshift efficiency translates into an equivalent reduction of the replication of the human immunodeficiency virus type 1" @default.
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- W2059483766 doi "https://doi.org/10.1016/j.virol.2005.08.048" @default.
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