Reference: Zhuravleva GA, et al. (2006) [Increased tRNA concentration in yeast containing mutant termination translation factors eRF1 and eRF3]. Mol Biol (Mosk) 40(4):724-30

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Abstract


Earlier we have characterized strains bearing mutations in essential genes SUP45 and SUP35 of yeast S. cerevisiae, encoding translation termination factors eRF1 and eRF3 respectively. In the present work nonsense-mutants on genes SUP45 and SUP35 have been compared by a level of eight tRNA: tRNATyr, tRNAGln, tRNATrp, tRNALeu and tRNAArg (previously described as potentially suppressor tRNA), and also tRNAPro, tRNAHis and tRNAGly. We have not revealed preferable increase in amount of natural suppressor tRNA. The majority of the investigated mutations leads to increase in a level of all investigated tRNA. The mechanisms providing viability of nonsense-mutants on essential genes SUP45 and SUP35 are discussed.

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Journal Article | Research Support, Non-U.S. Gov't
Authors
Zhuravleva GA, Moskalenko SE, Shabel'skaia SV, Philippe M, Inge-Vechtomov SG
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