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M6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast.

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Saccharomyces cerevisiae

PROVIDER: GSE193561 | GEO | 2022/12/06

REPOSITORIES: GEO

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<i>N6</i>-methyladenosine (m6A) reader Pho92 is recruited co-transcriptionally and couples translation to mRNA decay to promote meiotic fitness in yeast.

Project description: Not available

| S-EPMC9731578 | biostudies-literature

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [Polysome]

Project description:N6-methyladenosine (m6A) RNA modification impacts mRNA fate primarily via reader proteins, which dictate processes in development, stress, and disease. Yet little is known about m6A function in Saccharomyces cerevisiae, which occurs solely during early meiosis. Here we perform a multifaceted analysis of the m6A reader protein Pho92/Mrb1. Cross-linking immunoprecipitation analysis reveals that Pho92 associates with the 3’end of meiotic mRNAs in both an m6A-dependent and independent manner. Within cells, Pho92 transitions from the nucleus to the cytoplasm, and associates with translating ribosomes. In the nucleus Pho92 associates with target loci through its interaction with transcriptional elongator Paf1C. Functionally, we show that Pho92 promotes and links protein synthesis to mRNA decay. As such, the Pho92-mediated m6A-mRNA decay is contingent on active translation and the CCR4-NOT complex. We propose that the m6A reader Pho92 is loaded co-transcriptionally to facilitate correct translation and subsequent decay of m6A modified transcripts, and thereby promotes meiosis.

2022-12-06 | GSE193560 | GEO

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [pho92D_ime4D]

2022-12-06 | GSE193559 | GEO

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [ime1D_ndt80D]

2022-12-06 | GSE193558 | GEO

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [iCLIP_miCLIP-seq]

Project description:During meiosis, in Saccharomyces cerevisiae, N6-methyladenosine (m6A) modified transcripts are induced, of which the function is unknown. Here, we uncover the role of the m6A reader Pho92. Cross-linking immunoprecipitation (CLIP) revealed that Pho92 associates with meiotic mRNAs in both m6A dependent and independent manner. Incidentally, Pho92 resides in the nucleus during early meiosis and associates with nascent RNAs, which is mediated through its interaction with Paf1C. Transcripts bound by Pho92 show elevated translational efficiency while cells lacking Pho92 display a small, but notable, increase in mRNA levels but not in protein levels, suggesting role of Pho92 in translation and decay. We show that Pho92 associates with ribosomes where it promotes the decay of m6A modified transcripts, contingent on active translation and the CCR4-NOT complex. We propose that m6A reader Pho92 is loaded co-transcriptionally to promote translation and subsequent decay fate of m6A modified transcripts, which ensures gamete fitness.

2022-12-06 | GSE193291 | GEO

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast.

Project description:m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast.

| PRJNA796594 | ENA

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [pho92D_ime4D]

Project description:m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [pho92D_ime4D]

| PRJNA796600 | ENA

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [Polysome]

Project description:m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [Polysome]

| PRJNA796599 | ENA

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [ime1D_ndt80D]

Project description:m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [ime1D_ndt80D]

| PRJNA796601 | ENA

m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [iCLIP_miCLIP-seq]

Project description:m6A reader Pho92 is recruited co-transcriptionally and couples translation efficacy to mRNA decay to promote meiotic fitness in yeast [iCLIP_miCLIP-seq]

| PRJNA795681 | ENA

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