Saccharomyces cerevisiae SK1
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA282733 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:To discover new regulators of Regulatory Particle Assembly Chaperone (RPAC) translation, we identified RNA-binding proteins (RBPs) with increased recruitment to translating WT FGH17 mRNAs compared to non-translatable FGH17-40ntΔ mRNAs in vivo. To this end, we first treated yeast cells with rapamycin to stimulate translation of FGH17 mRNAs. Ribosomes were locked on mRNAs using cycloheximide and UV-crosslinking covalently linked the RNA and any bound proteins together. We next used anti-FLAG beads to immunoprecipitate translated FGH17 protein, as well as any translating FGH17-mRNA complexes where locked ribosomes had already synthesized one or both N-terminal FLAG tags. As FGH17-40ntΔ mRNAs are not translated, these samples should only immunoprecipitate proteins that bind non-specifically to the anti-FLAG beads. Based on the prediction that potential regulators of RPAC translation would be UV crosslinked to FGH17 mRNA within the 5’ UTR and upstream of locked translating ribosomes, we used RNases to specifically elute these potential regulators. We then identified the proteins in the RNase elution by tandem mass tag (TMT)-based quantitative proteomics.
2022-05-04 | PXD027655 | Pride
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
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 | GSE193559 | GEO
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 | GSE193558 | GEO
Project description:Meiosis timecourse expression profile
| PRJNA302921 | ENA
Project description:Meiosis timecourse Rap1 ChIP-chip
| PRJNA302917 | ENA
Project description:Meiosis timecourse Rap1-depletion expression profile
| PRJNA302919 | ENA
Project description:Meiosis timecourse Rap1-depletion Rap1 ChIP-chip
| PRJNA302918 | ENA
Project description:N6-methyladenosine (m6A) is the most ubiquitous mRNA base modification, but little is known about its precise location, temporal dynamics, and regulation. Here, we generated genomic maps of m6A sites in meiotic yeast transcripts at nearly single-nucleotide resolution, identifying 1,308 putatively methylated sites within 1,183 transcripts. We validated 8/8 methylation sites in different genes with direct genetic analysis, demonstrated that methylated sites are significantly conserved in a related species, and built a model that predicts methylated sites directly from sequence. Sites vary in their methylation profiles along a dense meiotic time-course, and are regulated both locally, via predictable methylatability of each site, and globally, through the core meiotic circuitry. The methyltransferase complex components localize to the yeast nucleolus, and this localization is essential for mRNA methylation. Our data illuminates a conserved, dynamically regulated methylation program in yeast meiosis, and provides an important resource for studying the function of this epitranscriptomic modification. Examination of m6A methylation under various conditions
2013-11-22 | E-GEOD-51583 | biostudies-arrayexpress
Project description:Meiosis timecourse open chromatin dynamics as measured by FAIRE
| PRJNA302920 | ENA