GEO DataSets

(Submitter supplied) Organisms respond to heat stress by reprogramming gene expression. Here we show that genome-wide reprogramming involves enhanced assembly of the TFIID and SAGA regulatory pathways at heat induced genes, and disassembly of the TFIID pathway at heat-repressed genes. While TFIID and SAGA are recruited to heat-induced genes, only SAGA appears to be associated with achieving maximal induction. Mot1, an ATP-dependent inhibitor of the TATA binding protein TBP, assembles at heat-induced SAGA-regulated genes, but functions to attenuate rather than promote activation. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platforms:

GPL1220 GPL760

32 Samples

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(Submitter supplied) Eukaryotic genes are controlled by sequence-specific DNA-binding proteins, chromatin regulators, general transcription factors, and elongation factors. Here we examine the genome-wide location of representative members of these groups and their redistribution when the Saccharomyces cerevisiae genome is reprogrammed by heat shock. As expected, assembly of active transcription complexes are coupled to eviction of H2A.Z nucleosomes, and disassembly is coupled to the return of nucleosomes. more...

Organism:

Saccharomyces cerevisiae

Type:

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

Platforms:

GPL1924 GPL1220 GPL760

111 Samples

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

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL2625 GPL3737 GPL4131

33 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL3737

2 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL4131

2 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL4131

2 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL4131

4 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL3737

7 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL2625

8 Samples

Download data: TXT

(Submitter supplied) Chromatin plays roles in processes governed by different time scales. To assay the dynamic behaviour of chromatin in living cells, we used genomic tiling arrays to measure histone H3 turnover in G1-arrested S. cerevisiae at single-nucleosome resolution over 4% of the genome, and over the entire genome at lower (~265 bp) resolution. We find that nucleosomes at promoters are replaced more rapidly than at coding regions, and that replacement rates over coding regions correlate with polymerase density. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL2625

8 Samples

Download data: TXT

(Submitter supplied) H2A.Z is a highly conserved histone variant involved in several key nuclear processes. It is incorporated into promoters by SWR-C-related chromatin remodeling complexes, but whether it is also actively excluded from non-promoter regions is not clear. Here, we provide genomic and biochemical evidence that RNA polymerase II (RNAPII) elongation-associated histone chaperones FACT and Spt6 both contribute to restricting H2A.Z from intragenic regions. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL18340 GPL4131

116 Samples

Download data: GPR

(Submitter supplied) TFIID and SAGA are the only two known yeast complexes that modify chromatin and deliver TBP to promoters. Previous genome wide expression studies indicated that TFIID and SAGA positively regulate most but not all yeast genes. Using a relatively low noise microarray approach, we have re-examined the genome-wide dependence on TFIID and SAGA. We find that TFIID and SAGA contribute to the expression of virtually the entire genome, with TFIID being preferred at ~90% of the genes, and SAGA being preferred at ~10%. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL760

1 Sample

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(Submitter supplied) TFIID and SAGA share a common set of TAFs, regulate chromatin, and deliver TBP to promoters. Here we examine their relationship within the context of the Saccharomyces cerevisiae genome-wide regulatory network. We find that while TFIID and SAGA make overlapping contributions to the expression of all genes, TFIID function predominates at ~90% and SAGA at ~10% of the measurable genome. Strikingly, SAGA-dominated genes are largely stress-induced and TAF-independent, and are down-regulated by the coordinate action of a variety of chromatin, TBP, and RNA polymerase II regulators. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL739

30 Samples

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(Submitter supplied) Eukaryotic transcription is regulated through two complexes, the general transcription factor IID (TFIID) and the coactivator Spt-Ada-Gcn5 acetyltransferase (SAGA). Recent findings confirm that both TFIID and SAGA contribute to the synthesis of nearly all transcripts and are recruited genome-wide in yeast. However, how this broad recruitment confers selectivity under specific conditions remains an open question. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19756 GPL13821

22 Samples

Download data: NARROWPEAK

(Submitter supplied) We analyzed the effect of SAC3, SUS1 and SRC1 on the transcription rates, mRNA stabilities and mRNA levels by doing GRO experiments in a deletion mutants and the partial C-truncated version of Sac3 comparing with a wild type. Some data for mRNA amounts (sus1 ans src1 mutants) are not included because were already in GEO database: GSE920 and GSE6370 accession numbers.

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platforms:

GPL4565 GPL8568

9 Samples

Download data: TXT

(Submitter supplied) TFIID plays a central role in regulating the expression of most eukaryotic genes. Of the 14 TAF subunits that compose TFIID, TAF1 is one of the largest and most functionally diverse. Yeast (Saccharomyces cerevisiae) TAF1 reportedly possesses at least four distinct activities including a histone acetyltransferase, and TBP, TAF, and promoter binding. Establishing the importance of each region in gene expression through deletion analysis has been hampered by the cellular requirement of TAF1 for viability. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL1220

14 Samples

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(Submitter supplied) Evidence suggests that the TAF1 subunit of TFIID is a histone acetyltransferase (HAT) that is functionally redundant with the Gcn5 HAT of the SAGA and ADA complexes. Here we test a number of predictions of this hypothesis by examining the in vivo histone acetylation targets of TAF1 and Gcn5, and re-examining the basis for the reported genome-wide functional redundancy between TAF1 and Gcn5. Our findings do not support a number of basic tenets of the hypothesis, thus bringing into question the physiological presence of any TAF1 HAT function in yeast. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL1924

8 Samples

Download data

(Submitter supplied) Evidence suggests that the TAF1 subunit of TFIID is a histone acetyltransferase (HAT) that is functionally redundant with the Gcn5 HAT of the SAGA and ADA complexes. Here we test a number of predictions of this hypothesis by examining the in vivo histone acetylation targets of TAF1 and Gcn5, and re-examining the basis for the reported genome-wide functional redundancy between TAF1 and Gcn5. Our findings do not support a number of basic tenets of the hypothesis, thus bringing into question the physiological presence of any TAF1 HAT function in yeast. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL1220

38 Samples

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(Submitter supplied) Acetylation of histone tails has long been associated with gene activation. Exactly how acetylation regulates gene expression is not fully known. Acetylation events at specific sites or collections of sites on histones elicit distinct outcomes. Here we examine the downstream consequences of histone acetylation by the histone H4 acetyltransferase NuA4 on a genomic scale. Evidence is presented that Bdf1, which is known to bind to acetylated lysine H4 tails in vitro, binds to nucleosomes in vivo and that this binding is dependent upon Esa1, the catalytic subunit of NuA4. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL1924

22 Samples

Download data

(Submitter supplied) Study to detect to genome wide localization of the ATP dependent chromatin remodelling factor Isw2 using ChIP. Keywords: ChIP chip

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL6476

6 Samples

Download data: CEL