GEO DataSets

(Submitter supplied) Using an integrated analysis of chromatin remodeler binding in unperturbed cells and nucleosome displacement activity upon rapid remodeler depletion or degradation, we investigate the interplay between these enzymes and their functional consequences. We show that many promoters are acted upon by multiple remodelers that operate either cooperatively or in opposition to determine the precise location of the key transcription start site-associated +1 nucleosome. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing; Other; Methylation profiling by high throughput sequencing

Platforms:

GPL17342 GPL21656

82 Samples

Download data: BIGWIG, BW

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

Organism:

Saccharomyces cerevisiae; Saccharomyces cerevisiae S288C; Saccharomyces cerevisiae W303

Type:

Expression profiling by array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL17342 GPL11232

64 Samples

Download data: BW, TXT

(Submitter supplied) Here we present evidence that precise positioning of the +1 promoter nucleosome in yeast is critical for efficient TBP binding and pre-initiation complex assembly, and is determined, at least in part, by the action of two key factors, the essential chromatin remodeler RSC and one (or more) of a small set of ubiquitous pioneer transcription factors (PTFs). Despite their widespread co-localization, we show that RSC and PTFs often act independently to generate accessible chromatin. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

52 Samples

Download data: BW

(Submitter supplied) Here we present evidence that precise positioning of the +1 promoter nucleosome in yeast is critical for efficient TBP binding and pre-initiation complex assembly, and is determined, at least in part, by the action of two key factors, the essential chromatin remodeler RSC and one (or more) of a small set of ubiquitous pioneer transcription factors (PTFs). Despite their widespread co-localization, we show that RSC and PTFs often act independently to generate accessible chromatin. more...

Organism:

Saccharomyces cerevisiae; Saccharomyces cerevisiae S288C; Saccharomyces cerevisiae W303

Type:

Expression profiling by array

Platform:

GPL11232

12 Samples

Download data: TXT

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

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by genome tiling array; Genome binding/occupancy profiling by genome tiling array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL9377 GPL7070

185 Samples

Download data: BAR, CEL, WIG

(Submitter supplied) Nucleosomes in all eukaryotes examined to date adopt a characteristic architecture within genes and play fundamental roles in regulating transcription, yet the identity and precise roles of many of the trans-acting factors responsible for the establishment and maintenance of this organization remain to be identified. We profiled a compendium of 50 yeast strains carrying conditional alleles or complete deletions of genes involved in transcriptional regulation, histone biology and chromatin remodeling, as well as compounds that target transcription and histone deacetylases, to assess their respective roles in nucleosome positioning and transcription. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9377

16 Samples

Download data: WIG

(Submitter supplied) Nucleosomes in all eukaryotes examined to date adopt a characteristic architecture within genes and play fundamental roles in regulating transcription, yet the identity and precise roles of many of the trans-acting factors responsible for the establishment and maintenance of this organization remain to be identified. We profiled a compendium of 50 yeast strains carrying conditional alleles or complete deletions of genes involved in transcriptional regulation, histone biology and chromatin remodeling, as well as compounds that target transcription and histone deacetylases, to assess their respective roles in nucleosome positioning and transcription. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL7070

107 Samples

Download data: BAR, CEL

(Submitter supplied) Nucleosomes in all eukaryotes examined to date adopt a characteristic architecture within genes and play fundamental roles in regulating transcription, yet the identity and precise roles of many of the trans-acting factors responsible for the establishment and maintenance of this organization remain to be identified. We profiled a compendium of 50 yeast strains carrying conditional alleles or complete deletions of genes involved in transcriptional regulation, histone biology and chromatin remodeling, as well as compounds that target transcription and histone deacetylases, to assess their respective roles in nucleosome positioning and transcription. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by genome tiling array

Platform:

GPL7070

62 Samples

Download data: BAR, CEL

(Submitter supplied) H3K36Ac promotes the remodeling activity of Chd1p to maintain chromatin stability at the 5’ ends of genes

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing; Other

Platform:

GPL17342

28 Samples

Download data: BW, WIG

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

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing

Platform:

GPL9134

30 Samples

Download data: TXT

(Submitter supplied) RNA sequencing was performed on various W303 variants to determine effects of nucleosome repositioning on transcript abundance

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL9134

17 Samples

Download data: TXT, XLS

(Submitter supplied) Nucleosome positions were determined in wild type cells, cells lacking Isw2 or Ume6, and cells containing a hybrid Chd1-Ume6 chimeric remodeler

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9134

13 Samples

Download data: TXT

(Submitter supplied) The classic view of nucleosome organization at active promoters is that two well-positioned nucleosomes flank a nucleosome-depleted region (NDR). However, this view has been recently challenged by contradictory reports as to whether a distinct set of wider (≳150 bp) NDRs instead contain unusually unstable Micrococcal Nuclease-sensitive “fragile” particles, thought to be nucleosomal because of their size. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

63 Samples

Download data: BEDGRAPH, PDF

(Submitter supplied) The positioning of nucleosomes within the coding regions of eukaryotic genes is aligned with respect to transcriptional start sites. This organization is likely to influence many genetic processes, requiring access to the underlying DNA. Here we show that the combined action of Isw1 and Chd1 nucleosome spacing enzymes is required to maintain this organization. In the absence of these enzymes regular positioning of the majority of nucleosomes is lost. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL14009

3 Samples

Download data: TXT

(Submitter supplied) ChIP-chip assays to determine the localisation of 3xFLAG tagged Isw1 in wild-type yeast.

Organism:

Saccharomyces cerevisiae; Saccharomyces cerevisiae S288C

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL13972

3 Samples

Download data: TXT

(Submitter supplied) The positioning of nucleosomes within the coding regions of eukaryotic genes is aligned with respect to transcriptional start sites. This organization is likely to influence many genetic processes, requiring access to the underlying DNA. Here we show that the combined action of Isw1 and Chd1 nucleosome spacing enzymes is required to maintain this organization. In the absence of these enzymes regular positioning of the majority of nucleosomes is lost. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9134

5 Samples

Download data: BW

(Submitter supplied) We identify the cis and trans determinants of nucleosome positioning using a functional evolutionary approach involving S. cerevisiae strains containing large genomic regions from other yeast species. In a foreign species, nucleosome depletion at promoters is maintained over poly(dA:dT) tracts, whereas internucleosome spacing and all other aspects of nucleosome positioning tested are not. Interestingly, the locations of the +1 nucleosome and RNA start sites shift in concert. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9134

5 Samples

Download data: TXT

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

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array; Expression profiling by genome tiling array; Genome binding/occupancy profiling by high throughput sequencing

4 related Platforms

21 Samples

Download data: BW, TXT

(Submitter supplied) ISWI-family chromatin remodelers organize nucleosome arrays, while SWI/SNF-family remodelers (RSC) disorganize and eject nucleosomes, implying an antagonism that is largely unexplored in vivo. Here, we describe two independent genetic screens for rsc suppressors that yielded mutations in the promoter-focused ISW1a complex, or mutations in the ‘basic patch’ of histone H4 (an epitope that regulates ISWI activity), strongly supporting RSC-ISW1a antagonism in vivo. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13821

2 Samples

Download data: BW

(Submitter supplied) ISWI-family chromatin remodelers organize nucleosome arrays, while SWI/SNF-family remodelers (RSC) disorganize and eject nucleosomes, implying an antagonism that is largely unexplored in vivo. Here, we describe two independent genetic screens for rsc suppressors that yielded mutations in the promoter-focused ISW1a complex, or mutations in the ‘basic patch’ of histone H4 (an epitope that regulates ISWI activity), strongly supporting RSC-ISW1a antagonism in vivo. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL13821 GPL13272

7 Samples

Download data: BW