Secondary structures and starvation-induced frameshifting

Molecular Microbiology
J AtkinsonJ Gallant

Abstract

We have examined the effect of a downstream secondary structure (the stem-loop sequence found downstream on the MMTV gag-pro frameshift site) on frameshifting at a bacterial shifty site (U UUC AUA) that responds strongly to a isoleucine-tRNA limitation. Our findings are as follows: (i) the downstream stem-loop has little effect on frameshifting in growing, unstarved cells; (ii) the stem-loop increases the frameshifting effect of isoleucine-tRNA limitation about fourfold, and this synergism is maximal with a distance of 5-9 nucleotides between the 'hungry' AUA codon and the stem-loop; and (iii) a stem-loop of different sequence at the same position has the same effect.

Citations

Sep 13, 2019·Nucleic Acids Research·Marina V RodninaFrank Peske
Jul 7, 2016·The Journal of Biological Chemistry·Paul SaffertZoya Ignatova
Jun 22, 2021·Frontiers in Microbiology·Federica De LiseBeatrice Cobucci-Ponzano

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