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N6-methyladenosine (m6A) reader Pho92 is recruited co-transcriptionally and couples translation to mRNA decay to promote meiotic fitness in yeast
- Source :
- Elife, 11, 1-109, Elife, 11, pp. 1-109
- Publication Year :
- 2022
- Publisher :
- The Francis Crick Institute, 2022.
-
Abstract
- 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 protein synthesis and subsequent decay of m6A modified transcripts, and thereby promotes meiosis.
- Subjects :
- Model organisms
Immunology
Gene Expression
Infectious Disease
Biochemistry & Proteomics
General Biochemistry, Genetics and Molecular Biology
Signalling & Oncogenes
Ecology,Evolution & Ethology
Molecular Biology
Computational & Systems Biology
Chemical Biology & High Throughput
Human Biology & Physiology
General Immunology and Microbiology
General Neuroscience
FOS: Clinical medicine
Stem Cells
Genome Integrity & Repair
Neurosciences
General Medicine
Cell Biology
Tumour Biology
Metabolism
Cell Cycle & Chromosomes
Synthetic Biology
Genetics & Genomics
Developmental Biology
Subjects
Details
- ISSN :
- 2050084X
- Database :
- OpenAIRE
- Journal :
- Elife, 11, 1-109, Elife, 11, pp. 1-109
- Accession number :
- edsair.doi.dedup.....825653cf3731adc87ff5ec8e4dcf6f10
- Full Text :
- https://doi.org/10.25418/crick.21731894