ArticleGene2017
Maf1-mediated regulation of yeast RNA polymerase III is correlated with CCA addition at the 3' end of tRNA precursors.
Article in Gene, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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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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Who cites it
4 citing papers in PubMed, 9 citations in OpenAlex.
- Maf1 phosphorylation is regulated through the action of prefoldin-like Bud27 on PP4 phosphatase in Saccharomyces cerevisiae.Nucleic acids research · 2024Article
- The life and times of a tRNA.RNA (New York, N.Y.) · 2023Review
- Maf1 ameliorates cardiac hypertrophy by inhibiting RNA polymerase III through ERK1/2.Theranostics · 2019Article
- Signaling to and from the RNA Polymerase III Transcription and Processing Machinery.Annual review of biochemistry · 2018Review
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
In eukaryotic cells tRNA synthesis is negatively regulated by the protein Maf1, conserved from yeast to humans. Maf1 from yeast Saccharomyces cerevisiae mediates repression of trna transcription when cells are transferred from medium with glucose to medium with glycerol, a non-fermentable carbon source. The strain with deleted gene encoding Maf1 (maf1Δ) is viable but accumulates tRNA precursors. In this study tRNA precursors were analysed by RNA-Seq and Northern hybridization in wild type strain and maf1Δ mutant grown in glucose medium or upon shift to repressive conditions. A negative effect of maf1Δ mutant on the addition of the auxiliary CCA nucleotides to the 3' end of pre-tRNAs was observed in cells shifted to unfavourable growth conditions. This effect was reduced by overexpression of the yeast CCA1 gene encoding ATP(CTP):tRNA nucleotidyltransferase. The CCA sequence at the 3' end is important for export of tRNA precursors from the nucleus and essential for tRNA charging with amino acids. Data presented here indicate that CCA-addition to intron-containing end-processed tRNA precursors is a limiting step in tRNA maturation when there is no Maf1 mediated RNA polymerase III (Pol III) repression. The correlation between CCA synthesis and Pol III regulation by Maf1 could be important in coordination of tRNA transcription, processing and regulation of translation.
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Registered trials
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