Browse
Submit Data
Databases
API
Help

Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

14 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Pombe_ribosome_profiling_pat1_meiotic_cells

ABSTRACT: We applied in parallel RNA-Seq and Ribosome-profiling to S. pombe pat1 diploids undergoing meiosis and sporulation in a synchronous manner

INSTRUMENT(S): Illumina HiSeq 2000

ORGANISM(S): Schizosaccharomyces pombe

SUBMITTER: Juan Mata

PROVIDER: E-MTAB-2179 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Pombe_ribosome_profiling_pat1_meiotic_cells

Project description:We applied in parallel RNA-Seq and Ribosome-profiling to S. pombe pat1 diploids undergoing meiosis and sporulation in a synchronous manner

2014-06-03 | E-MTAB-2265 | biostudies-arrayexpress

Transcription profiling time series of mei4delta mutant fission yeast during meiosis

Project description:Changes in gene expression are hallmarks of cellular differentiation. Sexual differentiation in fission yeast (Schizosaccharomyces pombe) provides a model system for gene expression programs accompanying and driving cellular specialization. The expression of hundreds of genes is modulated in successive waves during meiosis and sporulation in S. pombe, and several known transcription factors are critical for these processes. We used DNA microarrays to investigate meiotic gene regulation by examining transcriptomes after genetic perturbations (gene deletion and/or overexpression) of rep1, mei4, atf21 and atf31, which encode known transcription factors controlling sexual differentiation. This analysis reveals target genes at a genome-wide scale and uncovers combinatorial control by Atf21p and Atf31p. We also studied two transcription factors that are upregulated during meiosis but had not been previously implicated in sexual differentiation : Rsv2p induces stress-related genes during spore formation, while Rsv1p acts as a repressor for glucose-metabolism genes. Our data further reveal negative feedback interactions: both Rep1p and Mei4p not only activate specific gene expression waves (early and middle genes, respectively), but are also required for repression of genes induced in the previous waves (Ste11p-dependent and early genes, respectively).

2008-01-01 | E-TABM-298 | biostudies-arrayexpress

Transcription profiling time series of rep1delta mutant fission yeast during meiosis

2008-01-01 | E-TABM-300 | biostudies-arrayexpress

Effects of cycloheximide (CHX) on ribosome profiling experiments in Schizosaccharomyces pombe

Project description:CHX is an inhibitor of translation elongation often used in ribosome profiling experiments. There is evidence that CHX treatment of cells may cause artefacts in the distribution of ribosomes on mRNAs. We investigate this possibility in S. pombe by performing ribosome profiling in the presence and absence of this drug.

2017-09-05 | E-MTAB-5794 | biostudies-arrayexpress

RIp-chip experiments with proteins that do not contain RNA-binding domains

Project description:In order to assess the prevalence of cotranslational assembly of protein complexes we performed RIp-chip experiments with many proteins that do not conatin RNA-binding motifs

2012-05-20 | E-TABM-1158 | biostudies-arrayexpress

Pombe_ribosome_profiling_vegetative_cells

Project description:We applied in parallel RNA-Seq and Ribosome-profiling to vegetatively growing S. pombe cells. Two independent biological repeats were performed.

2014-06-03 | E-MTAB-2176 | biostudies-arrayexpress

Analysis of the fission yeast meiotic proteome reveals a global switch from anabolic to catabolic processes and extensive post-transcriptional regulation.

Project description:Progression through meiosis in Schizosaccharomyces pombe is regulated by stage-specific gene expression and translation, changes in RNA stability, expression of anti-sense transcripts and also requires stage-specific, targetted proteolysis of regulatory proteins. We have used SILAC labelling to examine the relative levels of proteins in S. pombe as diploid cells undergo meiosis. We found that the relative level of 880 proteins changes at least two-fold at some stage of meiosis. Most of these proteins either increase or decrease in level during the meiotic divisions, while some show transient peaks of expression. The most notable changes are in the proteostasis network, which shows a significant increase in components involved in protein turnover concomitant to a decrease in proteins involved in ribosome biogenesis. There was also an increase in ESCRT III protein levels; biological analysis reveals a role for some ESCRT III components in chromosome segregation and spore formation. Correlation with previous studies of gene expression and ribosome occupancy through meiosis reveals that changes in steady state protein levels are mainly regulated post-transcriptionally.

2019-02-15 | PXD010438 | Pride

Ribonucleoprotein immunoprecipitation of Schizosaccharomyces pombe cells using the RNA-binding protein Meu5

Project description:Ribonucleoprotein immunoprecipitation microarray (RIp-chip) study using the RNA-binding protein Meu5 from the fission Schizosaccaromyces pombe

2011-01-01 | E-TABM-932 | biostudies-arrayexpress

Meiotic recombination cold spots in chromosomal cohesion sites [ChIP-chip]

Project description:Meiotic chromosome architecture called M-bM-^@M-^\axis-loop structuresM-bM-^@M-^] and histone modifications have been demonstrated to regulate the Spo11-dependent formation of DNA double-strand breaks (DSBs) that trigger meiotic recombination. Using genome-wide chromatin immunoprecipitation (ChIP) analyses followed by deep sequencing, we compared the genome-wide distribution of the axis protein Rec8 (the kleisin subunit of meiotic cohesin) with that of oligomeric DNA covalently bound to Spo11, indicative of DSB sites. The frequency of DSB sites is overall constant between Rec8 binding sites. However, DSB cold spots are observed in regions spanning M-BM-10.8 kb around Rec8 binding sites. The axis-associated cold spots are not due to exclusion of Spo11 localization from the axis, since ChIP experiments revealed that substantial Spo11 persists at Rec8 binding sites during DSB formation. Spo11 fused with Gal4 DNA binding domain (Gal4BD-Spo11) tethered in close proximity (M-bM-^IM-$0.8 kb) to Rec8 binding sites hardly forms meiotic DSBs, in contrast with other regions. In addition, H3K4 tri-methylation (H3K4me3) remarkably decreases at Rec8 binding sites. These results suggest that reduced histone H3K4me3 in combination with inactivation of Spo11 activity on the axis discourages DSB hot spot formation. ChIP-chip analysis of Rec8 on fission yeast meiotic chromosomes

2014-03-31 | E-GEOD-52858 | biostudies-arrayexpress

Pombe_RBP_profiling

Project description:RNA-Seq from vegetatively growing S. pombe cells carrying mutation in RNA-binding protein genes

2014-12-01 | E-MTAB-2695 | biostudies-arrayexpress