Ribosomal frameshifting requires a pseudoknot in the Saccharomyces cerevisiae double-stranded RNA virus - PubMed (original) (raw)

Ribosomal frameshifting requires a pseudoknot in the Saccharomyces cerevisiae double-stranded RNA virus

T H Tzeng et al. J Virol. 1992 Feb.

Abstract

The large double-stranded RNA of the Saccharomyces cerevisiae (yeast) virus has two large overlapping open reading frames on the plus strand, one of which is translated via a -1 ribosomal frameshift. Sequences including the overlapping region, placed in novel contexts, can direct ribosomes to make a -1 frameshift in wheat germ extract, Escherichia coli and S. cerevisiae. This sequence includes a consensus slippery sequence, GGGUUUA, and has the potential to form a pseudoknot 3' to the putative frameshift site. Based on deletion analysis, a region of 71 nucleotides including the potential pseudoknot and the putative slippery sequence is sufficient for frameshifting. Site-directed mutagenesis demonstrates that the pseudoknot is essential for frameshifting.

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References

    1. Cell. 1988 Dec 23;55(6):1159-69 - PubMed
    1. Cell. 1989 Jul 14;58(1):9-12 - PubMed
    1. Proc Natl Acad Sci U S A. 1987 Jun;84(12):4298-302 - PubMed
    1. Cell. 1988 Nov 4;55(3):447-58 - PubMed
    1. Proc Natl Acad Sci U S A. 1985 May;82(9):2829-33 - PubMed

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