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ABSTRACT:
PROVIDER: PRJNA665150 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:Disome-seq data in yeast cells
| PRJNA665694 | ENA
Project description:Genome-wide detection of monosome and disome distributions in yeast cells
2020-12-10 | GSE158572 | GEO
Project description:RNA-seq, monosome Ribo-seq, and disome Ribo-seq were performed to study the effect of deletion of ZNF-598 on No-Go mRNA Decay.
2023-11-01 | GSE187348 | GEO
Project description:The ribosome-associated protein quality control (RQC) system that resolves stalled translation events is activated when ribosomes collide and form disome, trisome or higher order complexes. However, it is unclear whether this system distinguishes collision complexes formed on defective mRNAs from those with functional roles on endogenous transcripts. Here, we performed disome and trisome footprint profiling in yeast and found collisions were enriched on diverse sequence motifs known to slow translation. When 60S recycling was inhibited, disomes accumulated at stop codons and could move into the 3’UTR to reinitiate translation. The ubiquitin ligase and RQC factor Hel2/ZNF598 generally recognized collisions but did not trigger degradation of endogenous transcripts. However, loss of Hel2 triggered the integrated stress response, via phosphorylation of eIF2alpha, thus linking these pathways. Our results suggest that Hel2 has a role in sensing ribosome collisions on endogenous mRNAs and such events may be important for cellular homeostasis.
2020-05-26 | GSE139036 | GEO
Project description:Monosome and disome profiling was performed on Flag-STAU1 Flp-In 293 T-REx to study the causes of ribosomal collisions, and whether this may be modulated by the presence/absence of Staufen-1. Cells were treated with either an siRNA targeting STAU1 transcript (4x samples) or a control siRNA (2x samples). Two of the four samples treated with the STAU1 siRNA had siRNA-resistant STAU1 mRNA expression induced by doxycycline (rescue). Sequencing libraries from monosome and disome fractions were generated in parallel from the same samples. Note that unique molecular identifiers/random barcodes (UMIs/RBCs) were included in the sequencing experiment. Each UMI has been moved to the fastq read name of each read. For example \\"xxxxxxrbc:AGCCAAT\\" in the read name signifies that the given read had a UMI of \\"AGCCAAT\\". Using these UMIs, PCR duplicates can be removed with UMI-Tools following read alignment.
2023-04-30 | E-MTAB-9669 | biostudies-arrayexpress
Project description:Aneuploidy and epigenetic alterations have long been associated with carcinogenesis, but it was unknown whether aneuploidy could disrupt the epigenetic states required for cellular differentiation. In this study, we found that ~3% of random aneuploid karyotypes in yeast disrupt the stable inheritance of silenced chromatin during cell proliferation. Karyotype analysis revealed that this phenotype was significantly correlated with gains of chromosomes III and X. Chromosome X disomy alone was sufficient to disrupt chromatin silencing and yeast mating-type identity as indicated by a lack of growth response to pheromone. The silencing defect was not limited to the cryptic mating type loci but was associated with global changes in histone modifications and chromatin localization of Sir2 histone deacetylase. The chromatin-silencing defect of disome X can be partially recapitulated by increasing the copy number of several genes on chromosome X. These results suggest that aneuploidy can directly cause epigenetic instability and disrupt cellular differentiation.
2017-09-12 | GSE98282 | GEO
Project description:The regulation of translation elongation plays a vital role in protein folding; an adequate translational pause provides time and cellular environments for the co-translational folding of nascent peptides. However, the genomic landscape, sequence determinants, and molecular consequences of translational pausing remain mostly unknown. In this study, we performed disome-seq that sequenced mRNA fragments protected by two consecutive ribosomes – a product of severe translational pauses during which the upstream ribosome collides into the paused one. We detected severe translational pauses on ~75% of yeast genes. These pauses were often explained by one of the three mechanisms: 1) slow ribosome releasing at stop codons, 2) slow peptide formation from proline, glycine, asparagine, and cysteine, and 3) slow leaving of polylysine from the exit tunnel of ribosomes. Notably, these amino acids also terminate the α-helical conformation. Such dual roles of amino acids establish an inborn coupling between the synthetic completion of a structural motif and a translational pause. Furthermore, paused ribosomes often recruit chaperones to assist protein folding. As a consequence, emergent protein structures during evolution should be ready to be correctly folded. Collectively, our study shows widespread translational pauses and sheds lights on a better understanding of the regulation of co-translational protein folding.
2020-12-10 | PXD015271 | Pride
Project description:The dataset contains ChIP-Seq data of the Set3 and Hos2 proteins in Candida albicans, assayed in two morphological phases (yeast and hypha). The Set3 and Hos2 proteins in the respective strains carry 9myc epitopes and ChIP was performed with an anti-myc antibody. Included samples are the following: 1 input and 1 ChIP sample of an untagged wild type strain as negative control assayed in the yeast phase, 1 input and 3 ChIP biological replicates of the Set3-9myc strain in the yeast phase, 1 input and 2 ChIP biological replicates of the Set3-9myc strain in the hypha phase, 1 input and 2 ChIP biological replicates of the Hos2-9myc strain in the yeast phase, 1 input and 2 ChIP biological replicates of the Hos2-9myc strain in the hypha phase, 1 input and 3 ChIP biological replicates of Set3-9myc in a set1delta/delta background in the yeast phase. ChIP-Seq was performed of Candida albicans strains in two morphological phases (yeast and hypha). Yeast-phase cells were grown to the exponential phase in YPD at 30C. Hyphal differentiation was induced by resuspending the cells in YPD+20% Fetal Calf Serum and a shift of the growth temperature to 37C. Induction was performed for 30 minutes. Cells were crosslinked with 1% formaldehyde for 15 minutes at room temperature.
2013-01-01 | E-GEOD-38425 | biostudies-arrayexpress
Project description:We report here mRNA-seq data of wild-type and Nat4-deletion mutant yeast cells. We also report mRNA-seq data of wild-type yeast cells grown under non-calorie restriction (NCR) and calorie restriction (CR) conditions.
2016-11-22 | GSE86242 | GEO
Project description:<p>Gene expression is a biological process regulated at different molecular levels, including chromatin accessibility, transcription, and RNA maturation and transport. In addition, these regulatory mechanisms have strong links with cellular metabolism. Here we present a multi-omics dataset that captures different aspects of this multi-layered process in yeast. We obtained RNA-seq, metabolomics, and H4K12Ac ChIP-seq data for wild-type and mip6delta strains during a heat-shock time course. Mip6 is an RNA-binding protein that contributes to RNA export during environmental stress and is informative of the contribution of post-transcriptional regulation to control cellular adaptations to environmental changes. The experiment was performed in quadruplicate, and the different omics measurements were obtained from the same biological samples, which facilitates the integration and analysis of data using covariance-based methods. We validate our dataset by showing that ChIP-seq, RNA-seq and metabolomics signals recapitulate existing knowledge about the response of ribosomal genes and the contribution of trehalose metabolism to heat stress.</p>
2020-02-14 | MTBLS1320 | MetaboLights