GEO DataSets

(Submitter supplied) The goal of the project was to study synthesis rates (SR) and mRNA levels (RA) genome wide in a series of aneuploid strains to check for the posible variation in SR and RA in the genes of the aneuploid chromosome withe regard to the rest of the genome. We used Genomic Run-On (GRO) experiment to mesaure SR and RA values.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL24366

24 Samples

Download data: TXT

(Submitter supplied) In order to maintain the appropriate level of mRNA it is necessary coordinate simultaneously all the steps along the mRNA life cycle. It has been shown that several factors act in the regulation of gene expression as global coordinators. Thus, some kind of information is transferred from the nucleus to the cytoplasm, imprinted in the mRNA. In this way, it is conceivable the existence of mechanisms that ensure the balance between mRNA synthesis and degradation through the information flow from the cytoplasm to the nucleus and vice versa, as a crosstalk among both process to ensure the proper mRNA homeostasis in the cell. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL13620

18 Samples

Download data: TXT

(Submitter supplied) Nonsense-mediated mRNA decay (NMD) is a translation-dependent RNA quality-control pathway targeting transcripts such as messenger RNAs harboring premature stop-codons or short upstream open reading frame (uORFs). Our transcription start sites (TSSs) analysis of Saccharomyces cerevisiae cells deficient for RNA degradation pathways revealed that about half of the pervasive transcripts are degraded by NMD, which provides a fail-safe mechanism to remove spurious transcripts that escaped degradation in the nucleus. more...

Organism:

Saccharomyces cerevisiae BY4741

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18330

40 Samples

Download data: BED, WIG

(Submitter supplied) Isogenic UPF1+ or upf1- yeast strains were treated with 10 ug/ml thiolutin to inhibit global transcription. Targets were obtained from 16 time points: 0, 2, 4, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50, 60 minutes after transcription inhibition. Three biological replicates of each were generated and the expression profiles were determined using Affymetrix YG-S98 arrays. Comparisons between the sample groups allow the identification of genes with differential expression over time between UPF1+ and upf1-. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Dataset:

GDS1611

Platform:

GPL90

96 Samples

Download data: CEL, CHP, EXP

Analysis of wild type and mutant upf1 strains up to 60 minutes after treatment with 10 ug/ml thiolutin, a global transcription inhibitor. Upf1 is an RNA helicase required for nonsense-mediated mRNA decay (NMD). Results identify genes with differential expression over time between the two strains.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array, transformed count, 2 genotype/variation, 16 time sets

Platform:

GPL90

Series:

GSE3076

96 Samples

Download data: CEL, CHP, EXP

(Submitter supplied) We report a high resolution catalouge of NMD substrates using RNA-Seq. We discovered several hundred new substrates for NMD. Using published ribosome footprint profiling data, we measured ribosome densities of normal-looking NMD substrates and non-NMD substrates. NMD substrates exhibited a striking difference in normalized ribosome occupancy in wild-type and UPF1 cells. We also found that normal looking NMD substrates have higher ratio of out of frame reads, lower codon optimalites and a higher propensity to have long stretches of non-optimal codons.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21656

21 Samples

Download data: TXT

(Submitter supplied) Antisense long non-coding (aslnc)RNAs represent a substantial part of eukaryotic transcriptomes that are, in yeast, controlled by the Xrn1 exonuclease. Nonsense-Mediated Decay (NMD) destabilizes the Xrn1-sensitive aslncRNAs (XUT), but what determines their sensitivity remains unclear. We report that 3’ single-stranded (3’-ss) extension mediates XUTs degradation by NMD, assisted by the Mtr4 and Dbp2 helicases. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL17342 GPL13272

36 Samples

Download data: GFF, TXT

(Submitter supplied) Small RNA produced by Dicer (Dcr1) are used to map dsRNA in wild-type strain and a xrn1-delta mutant of S. cerevisiae, inactivated for the cytoplasmic 5'-3' RNA decay pathway.

Organism:

Saccharomyces cerevisiae

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL13272

4 Samples

Download data: TXT

(Submitter supplied) We have generated 979 yeast strains in which the natural 3' UTR of essential gene mRNAs has been replaced by the same long 1.4 kb artificial 3' UTR (DAmP modification). Nonsense mediated mRNA decay (NMD) of these mRNA reporters was tested by using Agilent barcode microarrays by taking advantage of molecular barcodes introduced just downstream the stop codon during strain construction. We introduced in each DAmP strain either a neutral mutation (deletion of YEL068C) or the deletion of essential factors for NMD: NAM7 and NMD2. more...

Organism:

Saccharomyces cerevisiae; Saccharomyces cerevisiae S288C

Type:

Expression profiling by array

Platform:

GPL18088

6 Samples

Download data: GPR

(Submitter supplied) The Ccr4-Not complex is a major regulator of stress responses that controls gene expression at multiple levels, from transcription to mRNA decay. Ccr4, a core subunit of the complex, is the main cytoplasmic deadenylase in Saccharomyces cerevisiae, however its mRNA targets have not been mapped on a genome-wide scale. Here we describe a genome-wide approach, RNA immunoprecipitation-high throughput sequencing (RIP-seq), to identify the RNAs bound to Ccr4, and two proteins that associate with it, Dhh1 and Puf5. more...

Organism:

Saccharomyces cerevisiae

Type:

Other

Platform:

GPL15263

14 Samples

Download data: TXT

(Submitter supplied) This study involves the role of yeast mRNA decay factors in transcription. The experiment included here are the ChIP-exo results of three decay factors: Xrn1, Dcp2 & Lsm1.

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13821

4 Samples

Download data: BEDGRAPH, TAB, WIG

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array; Genome binding/occupancy profiling by array

Platform:

GPL16503

22 Samples

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(Submitter supplied) Determination of 3' or 5' intragenic RNA pol II occupancy. Maintaining the proper mRNA levels is a key aspect in the regulation of gene expression. The balance between mRNA synthesis and decay determines these levels. Using a whole-genome analysis, we demonstrate that most yeast mRNAs are degraded by the 5'-to-3' pathway (the "decaysome"), as proposed previously. Unexpectedly, the level of these mRNAs is highly robust to perturbations in this major pathway, as defects in various decaysome components lead to transcription down-regulation. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by array

Platform:

GPL16503

10 Samples

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(Submitter supplied) Determination of the 3' or 5' intragenic nascent transcriptional rate. Maintaining the proper mRNA levels is a key aspect in the regulation of gene expression. The balance between mRNA synthesis and decay determines these levels. Using a whole-genome analysis, we demonstrate that most yeast mRNAs are degraded by the 5'-to-3' pathway (the "decaysome"), as proposed previously. Unexpectedly, the level of these mRNAs is highly robust to perturbations in this major pathway, as defects in various decaysome components lead to transcription down-regulation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL16503

12 Samples

Download data

(Submitter supplied) Maintaining the proper mRNA levels is a key aspect in the regulation of gene expression. The balance between mRNA synthesis and decay determines these levels. Using a whole-genome analysis, we demonstrate that most yeast mRNAs are degraded by the 5'-to-3' pathway (the "decaysome"), as proposed previously. Unexpectedly, the level of these mRNAs is highly robust to perturbations in this major pathway, as defects in various decaysome components lead to transcription down-regulation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL13620

9 Samples

Download data: TXT

(Submitter supplied) Gene expression analysis requires accurate measurements of global RNA degradation rates, earlier problematic with methods disruptive to cell physiology. Recently, metabolic RNA labeling emerged as an efficient and minimally invasive technique applied in mammalian cells. Here, we have adapted SH-Linked Alkylation for the Metabolic Sequencing of RNA (SLAM-Seq) for a global mRNA stability study in yeast using 4-thiouracil pulse-chase labeling. more...

Organism:

Saccharomyces cerevisiae

Type:

Other; Expression profiling by high throughput sequencing

Platform:

GPL19756

6 Samples

Download data: CSV

(Submitter supplied) Time course after the addition of the transcriptional inhibitor thiolutin at 3 and 10 µg/mL to an exponential growing culture of S. cerevisiae in YPD. Keywords: time course, mRNA stability analysis

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

6 Samples

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(Submitter supplied) Time course after the addition of the transcriptional inhibitor thiolutin at 3µg/mL to an exponential growing culture of S. cerevisiae in YPD. Keywords: time course, mRNA stability analysis

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL3763

5 Samples

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(Submitter supplied) Aneuploidy, a condition characterized by whole chromosome gains and losses, is often associated with significant cellular stress and decreased fitness. However, whether and how cells respond to the aneuploid state has remained controversial. In aneuploid budding yeast, two opposing gene expression patterns have been reported: an environmental stress response (ESR) and a “common aneuploidy gene-expression” (CAGE) signature, in which many ESR genes are oppositely regulated. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13821

176 Samples

Download data: FA, GTF, TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL4566

42 Samples

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