ArticleVirus evolution2022
Silent codon positions in the A-rich HIV RNA genome that do not easily become A: Restrictions imposed by the RNA sequence and structure.
Article in Virus evolution, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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2 authors.
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Abstract
There is a strong evolutionary tendency of the human immunodeficiency virus (HIV) to accumulate A nucleotides in its RNA genome, resulting in a mere 40 per cent A count. This A bias is especially dominant for the so-called silent codon positions where any nucleotide can be present without changing the encoded protein. However, particular silent codon positions in HIV RNA refrain from becoming A, which became apparent upon genome analysis of many virus isolates. We analyzed these 'noA' genome positions to reveal the underlying reason for their inability to facilitate the A nucleotide. We propose that local RNA structure requirements can explain the absence of A at these sites. Thus, noA sites may be prominently involved in the correct folding of the viral RNA. Turning things around, the presence of multiple clustered noA sites may reveal the presence of important sequence and/or structural elements in the HIV RNA genome.
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