GEO DataSets

(Submitter supplied) TATA-binding protein (TBP) is central to the regulation of transcription initiation. Recruitment of TBP to target genes can be positively regulated by one of two basal transcription factor complexes: SAGA or TFIID. Negative regulation of TBP promoter association can be performed by Mot1 or the NC2 complex. Recent evidence suggest that Mot1, NC2, and TBP form a DNA-dependent protein complex. Here, we compare the functions of Mot1 and NC2beta during basal and activated transcription using the anchor-away technique for conditional nuclear depletion. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL11232

12 Samples

Download data: TXT

(Submitter supplied) The SAGA coactivator complex facilitates transcription initiation through chromatin-modifying activities and interaction with TBP. SAGA was suggested to regulate the expression of about 10% of yeast genes, leading to the longstanding distinction of SAGA-dominated from TFIID-dominated genes, depending on the complex used to recruit TBP to promoters. We reassessed the genome-wide localization of SAGA by using ChEC-seq and its role on transcription through quantification of newly-synthesized mRNA. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

5 Samples

Download data: RTF, WIG

(Submitter supplied) The SAGA co-activator has been implicated in the regulation of a smal subset of genes in budding yeast in transcriptomic analyses performed in steady-state levels of RNA. We used microarrays to analyse newly-synthesized RNA in several mutants for the SAGA complex to disclose and readdress the impact of this complex in RNA Polymerase II transcription.

Organism:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL2529

68 Samples

Download data: CEL

(Submitter supplied) Purpose: We want to know whether MINC(Mot1-Ino80C-NC2) suppress pervasive transcription at both euchromatin and heterochromatin Using next generation sequencing we show that Mot1, Ino80 chromatin remodeling complex (Ino80C), and NC2 (MINC) colocalize on chromatin and cooperate to suppress pervasive transcription in S. cerevisiae and murine embryonic stem cells (mESCs). Conclusion: Our ChIP-Seq and mRNA-Seq data show that MINC regulates pervasive transcription in yeast and mammals

Organism:

Saccharomyces cerevisiae; Mus musculus

Type:

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

4 related Platforms

117 Samples

Download data: BEDGRAPH, TXT, XLSX

(Submitter supplied) TFIID and SAGA complexes play a critical role in RNA Polymerase II dependent activated transcription. Although the two regulatory complexes are recruited to promoters by activation domain-interactions, the contribution of the different subunits or the different domains of the individual subunits is not completely understood. Taf9 is a shared subunit in TFIID and SAGA and has an N-terminal H3-like histone fold domain and a highly conserved C-terminal domain, Taf9-CTD. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL14009

14 Samples

Download data: TXT

(Submitter supplied) Previous studies suggested that expression of most yeast mRNAs is dominated by either transcription factor TFIID or SAGA. We reexamined this longstanding problem by rapid depletion of TFIID subunits and measurement of changes in nascent transcription. We find that transcription of nearly all mRNAs is strongly dependent on TFIID function. Degron-dependent depletion of Tafs 1,2,7,11, and 13 showed similar transcription decreases for genes in the Taf1-depleted, Taf1-enriched, TATA-containing and TATA-less gene classes. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing; Other

Platform:

GPL17342

50 Samples

Download data: WIG

(Submitter supplied) RNA Pol II transcription has been implied to be either regulated by the general transcription factor TFIID or the co-activator SAGA. Also, this dominancy of either SAGA or TFIID might be according to the existance, or not, of a TATA consensus sequence. We used microarrays to analyse newly-synthesized RNA in two mutants that allow conditional nuclear depletion of Taf4 or Taf5 to reevaluate whether some genes are more affected than others.

Organism:

Schizosaccharomyces pombe; Saccharomyces cerevisiae

Type:

Expression profiling by array

Platform:

GPL2529

16 Samples

Download data: CEL

(Submitter supplied) Deletions within genes coding for subunits of the transcription coactivator SAGA caused strong genome-wide defects in transcription and SAGA-mediated chromatin modifications. In contrast, rapid SAGA depletion produced only modest transcription defects at 13% of protein-coding genes – genes that are generally more sensitive to rapid TFIID depletion. However, transcription of these “coactivator-redundant” genes is strongly affected by rapid depletion of both factors, showing the overlapping functions of TFIID and SAGA at this gene set. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

32 Samples

Download data: WIG

(Submitter supplied) Deletions within genes coding for subunits of the transcription coactivator SAGA caused strong genome-wide defects in transcription and SAGA-mediated chromatin modifications. In contrast, rapid SAGA depletion produced only modest transcription defects at 13% of protein-coding genes – genes that are generally more sensitive to rapid TFIID depletion. However, transcription of these “coactivator-redundant” genes is strongly affected by rapid depletion of both factors, showing the overlapping functions of TFIID and SAGA at this gene set. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17342

11 Samples

Download data: CSV

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

Organism:

Saccharomyces cerevisiae

Type:

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

Platform:

GPL17342

128 Samples

Download data: CSV, WIG

(Submitter supplied) Deletions within genes coding for subunits of the transcription coactivator SAGA caused strong genome-wide defects in transcription and SAGA-mediated chromatin modifications. In contrast, rapid SAGA depletion produced only modest transcription defects at 13% of protein-coding genes – genes that are generally more sensitive to rapid TFIID depletion. However, transcription of these “coactivator-redundant” genes is strongly affected by rapid depletion of both factors, showing the overlapping functions of TFIID and SAGA at this gene set. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL17342

25 Samples

Download data: WIG

(Submitter supplied) Deletions within genes coding for subunits of the transcription coactivator SAGA caused strong genome-wide defects in transcription and SAGA-mediated chromatin modifications. In contrast, rapid SAGA depletion produced only modest transcription defects at 13% of protein-coding genes – genes that are generally more sensitive to rapid TFIID depletion. However, transcription of these “coactivator-redundant” genes is strongly affected by rapid depletion of both factors, showing the overlapping functions of TFIID and SAGA at this gene set. more...

Organism:

Saccharomyces cerevisiae

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17342

60 Samples

Download data: CSV

(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

Download data

(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

Download data

(Submitter supplied) The Mediator coactivator complex is divided into four modules: head, middle, tail, and kinase. Deletion of the architectural subunit Med16 separates core Mediator (cMed), comprising the head, middle, and scaffold (Med14), from the tail. However, the direct global effects of tail/cMed disconnection are unclear. We find that rapid depletion of Med16 downregulates genes that require the SAGA complex for full expression, consistent with their reported tail dependence, but also moderately overactivates TFIID-dependent genes in a manner partly dependent on the separated tail, which remains associated with upstream activating sequences. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19756

4 Samples

Download data: BW

(Submitter supplied) The Mediator coactivator complex is divided into four modules: head, middle, tail, and kinase. Deletion of the architectural subunit Med16 separates core Mediator (cMed), comprising the head, middle, and scaffold (Med14), from the tail. However, the direct global effects of tail/cMed disconnection are unclear. We find that rapid depletion of Med16 downregulates genes that require the SAGA complex for full expression, consistent with their reported tail dependence, but also moderately overactivates TFIID-dependent genes in a manner partly dependent on the separated tail, which remains associated with upstream activating sequences. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21656

24 Samples

Download data: BW

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

Organism:

Saccharomyces cerevisiae W303; Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by high throughput sequencing; Other

Platforms:

GPL21656 GPL19756 GPL27477

125 Samples

Download data: BW, TXT

(Submitter supplied) The Mediator coactivator complex is divided into four modules: head, middle, tail, and kinase. Deletion of the architectural subunit Med16 separates core Mediator (cMed), comprising the head, middle, and scaffold (Med14), from the tail. However, the direct global effects of tail/cMed disconnection are unclear. We find that rapid depletion of Med16 downregulates genes that require the SAGA complex for full expression, consistent with their reported tail dependence, but also moderately overactivates TFIID-dependent genes in a manner partly dependent on the separated tail, which remains associated with upstream activating sequences. more...

Organism:

Saccharomyces cerevisiae W303

Type:

Other

Platform:

GPL27477

30 Samples

Download data: TXT

(Submitter supplied) The Mediator coactivator complex is divided into four modules: head, middle, tail, and kinase. Deletion of the architectural subunit Med16 separates core Mediator (cMed), comprising the head, middle, and scaffold (Med14), from the tail. However, the direct global effects of tail/cMed disconnection are unclear. We find that rapid depletion of Med16 downregulates genes that require the SAGA complex for full expression, consistent with their reported tail dependence, but also moderately overactivates TFIID-dependent genes in a manner partly dependent on the separated tail, which remains associated with upstream activating sequences. more...

Organism:

Saccharomyces cerevisiae W303

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL27477

67 Samples

Download data: BW

(Submitter supplied) TATA-binding protein (TBP) nucleates the assembly of the transcription preinitiation complex (PIC), and although TBP can bind promoters with high stability in vitro, recent results establish that virtually the entire TBP population is highly dynamic in yeast nuclei in vivo. This dynamic behavior is surprising in light of models which posit that a stable TBP-containing scaffold facilitates transcription reinitiation at active promoters. more...

Organism:

Saccharomyces cerevisiae

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL7250

10 Samples

Download data: BAR, CEL