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Links from GEO DataSets

Items: 20

1.

Ratios for G1 arrested cells (Agilent array)

(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
Series
Accession:
GSE6666
ID:
200006666
2.

Dynamics of replication-independent histone turnover in budding yeast

(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 GPL4131 GPL3737
33 Samples
Download data: TXT
Series
Accession:
GSE6680
ID:
200006680
3.

Ratios for Htz1D cells (Agilent array)

(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
Series
Accession:
GSE6670
ID:
200006670
4.

H3 occupancy

(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
Series
Accession:
GSE6669
ID:
200006669
5.

Nucleosome occupancy

(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
Series
Accession:
GSE6668
ID:
200006668
6.

PolII occupancy

(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
Series
Accession:
GSE6667
ID:
200006667
7.

Ratios for G1 arrested cells (Printed array)

(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
Series
Accession:
GSE6665
ID:
200006665
8.

Ratios for unsync cells

(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
Series
Accession:
GSE6664
ID:
200006664
9.

High-resolution genome-wide mapping of histone modifications.

(Submitter supplied) The expression patterns of eukaryotic genomes are controlled by their chromatin structure, consisting of nucleosome subunits in which DNA of approximately 146 bp is wrapped around a core of 8 histone molecules. Post-translational histone modifications play an essential role in modifying chromatin structure. Here we apply a combination of SAGE and chromatin immunoprecipitation (ChIP) protocols to determine the distribution of hyperacetylated histones H3 and H4 in the Saccharomyces cerevisiae genome. more...
Organism:
Saccharomyces cerevisiae
Type:
Other
Platform:
GPL4813
4 Samples
Download data
Series
Accession:
GSE6975
ID:
200006975
10.

GMAT (Genome-wide MApping Technique) [NlaIII: Saccharomyces cerevisiae] tag list

(Submitter supplied) The GMAT (Genome-wide MApping Technique) was developed by the combination of ChIP (chromatin immunoprecipitation) and SAGE (serial analysis of gene expression) protocols. Briefly, the chromatin prepared by sonication is subject to immunoprecipitation using specific antibody. DNA from precipitated chromatin is ligated with biotinylated linker and digested with NlaIII restriction enzyme. The DNA fragments with biotinylated linker are isolated and ligated with NlaIII-site specific linker. more...
Organism:
Saccharomyces cerevisiae
1 Series
4 Samples
Download data
Platform
Accession:
GPL4813
ID:
100004813
11.

Intrinsic histone-DNA interactions and low nucleosome density are important for accessibility of promoters in yeast

(Submitter supplied) In yeast cells, preferential accessibility of the HIS3-PET56 promoter region is determined by a general property of the DNA sequence, not by defined sequence elements. In vivo, this region is largely devoid of nucleosomes, and accessibility is directly related to reduced histone density. The HIS3-PET56 and DED1 promoter regions associate poorly with histones in vitro, indicating that intrinsic nucleosome positioning and stability is a major determinant of preferential accessibility. more...
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by array; Genome binding/occupancy profiling by genome tiling array
Platforms:
GPL2045 GPL2046
6 Samples
Download data: GPR
Series
Accession:
GSE2659
ID:
200002659
12.

A genome wide role for CHD remodeling factors and Nap1 in nucleosome disassembly

(Submitter supplied) Chromatin remodeling factors and histone chaperones were previously shown to cooperatively affect nucleosome assembly and disassembly processes in vitro. Here we show that S. pombe CHD remodellers, Hrp1 and Hrp3 physically interact with the histone chaperone Nap1. Genome wide analysis of Hrp1, Hrp3 and Nap1 occupancy, combined with nucleosome density measurements in respective mutants revealed that the CHD factors and Nap1 co-localized in particular to promoter regions where they remove nucleosomes near the transcriptional start site. more...
Organism:
Schizosaccharomyces pombe
Type:
Genome binding/occupancy profiling by array; Genome binding/occupancy profiling by genome tiling array
9 related Platforms
54 Samples
Download data: CEL, TXT, XLS
Series
Accession:
GSE6557
ID:
200006557
13.

Isw2 ChIP in S cerevisiae

(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
Series
Accession:
GSE8815
ID:
200008815
14.

Mapping Nucleosome positions in WT and delta isw2 cells

(Submitter supplied) To map nucleosome positions in WT and delta isw2 cells Keywords: Nucleosomal DNA hybridization
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by genome tiling array
Platform:
GPL6476
8 Samples
Download data: CEL
Series
Accession:
GSE8814
ID:
200008814
15.

Mapping chromatin remodelling in delta isw2 cells

(Submitter supplied) To define chromatin structure changes along the yeast genome using microarrays. Nucleosomal DNA from WT and delta isw2 yeast were hybridized and differences in signals were calculated. Keywords: Nucleosomal DNA hybridization
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by genome tiling array
Platform:
GPL6476
4 Samples
Download data: CEL
Series
Accession:
GSE8813
ID:
200008813
16.

Yeast Histone ChIP-chips_Evidence for nucleosome depletion at active regulatory regions genome-wide (Lee et al. 2004)

(Submitter supplied) The identification of nuclease-hypersensitive sites in an active globin gene and in the 5' regions of fruit fly heat shock genes first suggested that chromatin changes accompany gene regulation in vivo. Here we present evidence that the basic repeating units of eukaryotic chromatin, nucleosomes, are depleted from active regulatory elements throughout the Saccharomyces cerevisiae genome in vivo. We found that during rapid mitotic growth, the level of nucleosome occupancy is inversely proportional to the transcriptional initiation rate at the promoter. more...
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by genome tiling array
Platform:
GPL3704
24 Samples
Download data: GPR
Series
Accession:
GSE4727
ID:
200004727
17.

Genome-wide Replication-independent H3 Exchange Occurs Predominantly at Promoters and Implicates H3K56ac and Asf1

(Submitter supplied) In yeast, histone H3/H4 exchange independent of replication is poorly understood. Here, we analyzed the deposition of histone H3 molecules, synthesized during G1, using a high-density microarray histone exchange assay. While we found that H3 exchange in coding regions requires high levels of transcription, promoters exchange H3 molecules in absence of transcription. In inactive promoters, H3 is deposited predominantly in well-positioned nucleosomes surrounding nucleosome free regions, indicating that some nucleosomes in promoters are dynamic. more...
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by genome tiling array
Platforms:
GPL3737 GPL4130 GPL4131
12 Samples
Download data: GPR, TIFF
Series
Accession:
GSE8299
ID:
200008299
18.

Interdependent roles for histone chaperones and a chromatin boundary regulator in histone gene repression

(Submitter supplied) A two-colour cell array screen reveals interdependent roles for histone chaperones and a chromatin boundary regulator in histone gene repression. We describe a fluorescent reporter system that exploits the functional genomic tools available in budding yeast to systematically assess consequences of genetic perturbations on gene expression. We used our Reporter-Synthetic Genetic Array (R-SGA) method to screen for regulators of core histone gene expression. more...
Organism:
Saccharomyces cerevisiae
Type:
Genome binding/occupancy profiling by genome tiling array
Platform:
GPL7070
5 Samples
Download data: BAR, CEL
Series
Accession:
GSE16693
ID:
200016693
19.

Genome-scale profiling of histone H3.3 replacement patterns in Drosophila S2 cells

(Submitter supplied) Histones of higher eukaryotes are assembled into chromatin primarily during DNA replication, but at other times the histone H3.3 variant replaces canonical H3. We introduce a novel strategy for profiling epigenetic patterns based on H3.3 replacement, using microarrays covering about one third of the Drosophila melanogaster genome at 100-bp resolution. Striking patterns of H3.3 replacement were found over active genes and transposons. more...
Organism:
Drosophila melanogaster
Type:
Genome binding/occupancy profiling by array; Genome binding/occupancy profiling by genome tiling array
Platforms:
GPL2678 GPL1908
11 Samples
Download data: BEDGRAPH
Series
Accession:
GSE3031
ID:
200003031
20.

Genome-wide incorporation dynamics reveal distinct categories of turnover for the histone variant H3.3

(Submitter supplied) We developed a system to study the DNA replication-independent turnover nucleosomes containing the histone variant H3.3 in mammalian cells. By measuring the genome-wide incorporation of H3.3 at different time points following epitope-tagged H3.3 expression, we find three categories of H3.3-nucleosome turnover in vivo: rapid turnover, intermediate turnover and, specifically at telomeres, slow turnover. more...
Organism:
Mus musculus
Type:
Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing
Platform:
GPL13112
45 Samples
Download data: BED, TXT
Series
Accession:
GSE51505
ID:
200051505
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