GEO DataSets

(Submitter supplied) The P-TEFb complex promotes transcription elongation by releasing paused RNA polymerase II. P-TEFb itself is known to be inactivated through binding to the non-coding RNA 7SK but there is only limited information about mechanisms regulating their association. Here, we show that cells deficient in the RNA-binding protein hnRNP R, a known 7SK interactor, exhibit increased transcription due to phosphorylation of RNA polymerase II. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

16 Samples

Download data: CSV

(Submitter supplied) Most metazoan promoters have RNA polymerase II (Pol II) paused slightly downstream of the transcription start site by NELF and DSIF. This pausing keeps these promoters available for rapid induction by P-TEFb, whose activity causes NELF to dissociate and Pol II and DSIF to elongate on the gene. ChIP-Seq data was generated for Pol II, NELF, and DSIF in HeLa cells and used to look at pausing downstream of unannotated promoters.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

3 Samples

Download data: BEDGRAPH

(Submitter supplied) Releasing promoter-proximally-paused RNA polymerase II (RNAPII) by the positive transcription elongation factor b (P-TEFb) is a central regulatory step of eukaryotic mRNA synthesis. The nuclear activity of P-TEFb is controlled mainly by the 7SK small nuclear RNP (snRNP) which sequesters active P-TEFb into inactive 7SK/P-TEFb snRNP. Here we demonstrate that under normal culture conditions, the lack of 7SK snRNP has only a minor impact on global RNAPII transcription and promoter-proximal pausing without detectable consequences on cell growth and proliferation. more...

Organism:

Homo sapiens

Type:

Other

Platform:

GPL20301

24 Samples

Download data: BW

(Submitter supplied) RNAP II is frequently paused near gene promoters in mammals and its transition to productive elongation requires active recruitment of P-TEFb, a cyclin-dependent kinase for RNAP II and other key transcription elongation factors. A fraction of P-TEFb is sequestered in an inhibitory complex containing the 7SK noncoding RNA, but it has been unclear how P-TEFb is switched from the 7SK complex to RNAP II during transcription activation. more...

Organism:

Mus musculus

Type:

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

Platforms:

GPL13112 GPL9250

30 Samples

Download data: BIGWIG

(Submitter supplied) We used Illumina-HiSeq4000 to sequence 4sU-labelled RNA samples isolated from unchallenged and DNA damaged HeLa Flp-In cells, which revealed the nature of transcriptional response folowing genotoxic stress and the contribution of P-TEFb kinase in DNA damage-induced gene transcription.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

12 Samples

Download data: TXT

(Submitter supplied) Disturbed RNA processing and subcellular transport contribute to the pathomechanisms of motoneuron diseases such as amyotrophic lateral sclerosis and spinal muscular atrophy. RNA-binding proteins are involved in these processes, but the mechanisms how they regulate the subcellular diversity of transcriptomes, in particular in axons, are not understood. hnRNP R interacts with several proteins involved in motoneuron diseases. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Other

Platforms:

GPL11002 GPL16417

33 Samples

Download data: TXT

(Submitter supplied) The release of paused RNA polymerase II (RNAPII) from promoter-proximal regions is tightly controlled to ensure proper regulation of gene expression. The elongation factor PTEF-b is known to release paused RNAPII via phosphorylation of the RNAPII C-terminal domain by its cyclin-dependent kinase component, CDK9. However, the signal and stress-specific roles of the various RNAPII-associated macromolecular complexes containing PTEF-b/CDK9 are not yet clear. more...

Organism:

Homo sapiens

Type:

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

Platform:

GPL24676

137 Samples

Download data: BW

(Submitter supplied) To test whether Brd4 and SEC co-regulate the release of promoter-proximally paused Pol II, we performed Pol II ChIP-Seq to analyze the effect of depletion of Brd4 or SEC on HMBA-induced pause release in HCT116 cells.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL16791

6 Samples

Download data: BED

(Submitter supplied) Nuclear actin has been demonstrated to be essential for optimal transcription, but the molecular mechanisms and direct binding partner for actin in the RNA polymerase complex have remained unknown. By using purified proteins in several biochemical assays, we demonstrate a direct and specific interaction between monomeric actin and Cdk9, the kinase subunit of the positive transcription elongation factor b (P-TEFb) required for RNA polymerase II (Pol II) pause-release. more...

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19132

14 Samples

Download data: BIGWIG

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

Organism:

Drosophila melanogaster

Type:

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

Platform:

GPL19132

30 Samples

Download data: BIGWIG, TSV

(Submitter supplied) We demonstrate that actin interacts with essentially all transcribed genes and co-occupies most gene promoters together with RNA polymerase II (Pol II). On highly expressed genes, actin and Pol II can be found also on the gene bodies.

Organism:

Drosophila melanogaster

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL19132

24 Samples

Download data: BIGWIG

(Submitter supplied) The switch of RNAP II from the paused to the productive transcription elongation state is a pivotal regulatory step requiring specific phosphorylations catalyzed by the P-TEFb kinase. Nucleosolic P-TEFb activity is inhibited by its interaction with the ribonuclear protein complex built around the 7SK small nuclear RNA (7SK snRNP). MePCE is the RNA methyltransferase that methylates and stabilizes 7SK in the nucleosol. more...

Organism:

Homo sapiens

Type:

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

Platform:

GPL11154

19 Samples

Download data: BW, TXT

(Submitter supplied) The transition from transcription initiation into elongation at promoters of primary response genes (PRG) in metazoan cells is controlled by inducible transcription factors, which utilize P-TEFb to phosphorylate RNA Polymerase II (Pol II) in response to stimuli. Prior to stimulation, a fraction of P-TEFb is recruited to promoters in a catalytically inactive state bound to the 7SK small nuclear ribonucleoprotein (snRNP). more...

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18573

10 Samples

Download data: BIGWIG, BROADPEAK, NARROWPEAK

(Submitter supplied) Release of promoter-proximal paused RNA polymerase II (Pol II) during early elongation is a critical step in transcriptional regulation in metazoan cells. Paused Pol II release is thought to require the kinase activity of cyclin-dependent kinase 9 (CDK9) for the phosphorylation of DRB sensitivity-inducing factor, negative elongation factor, and C-terminal domain (CTD) serine-2 of Pol II. We found that Pol II-associated factor 1 (PAF1) is a critical regulator of paused Pol II release, that positive transcription elongation factor b (P-TEFb) directly regulates the initial recruitment of PAF1 complex (PAF1C) to genes, and that the subsequent recruitment of CDK12 is dependent on PAF1C. more...

Organism:

Homo sapiens

Type:

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

Platforms:

GPL11154 GPL16791

32 Samples

Download data: BEDGRAPH, TXT

(Submitter supplied) Transcriptional elongation by RNA polymerase II (Pol II) is regulated by positive transcription elongation factor b (P-TEFb) in association with Bromodomain-containing protein 4 (BRD4). We used genome-wide chromatin immunoprecipitation sequencing in primary human CD4+ T cells to reveal that BRD4 co-localizes with Ser2-phosphorylated Pol II (Pol II Ser2) at both enhancers and promoters of active genes. more...

Organism:

Homo sapiens

Type:

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

Platforms:

GPL11154 GPL10999

15 Samples

Download data: BED, WIG

(Submitter supplied) P-TEFb and CDK12 facilitate transcription elongation by RNA polymerase II and play prominent roles in cancer. Understanding their functional interplay could inform novel anti-cancer strategies. While inhibition of CDK12 downregulates unique sets of genes, eliciting genomic instability that is being exploited for novel therapies, little is known about the significance of transcriptional induction in CDK12-targeted cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Other

Platform:

GPL24676

16 Samples

Download data: BIGWIG

(Submitter supplied) We show that DANCE-MaP permits measurement of state-specific per-nucleotide reactivities, direct secondary structure PAIRs, and tertiary RINGs for RNA structural ensembles. Here, we demonstrate DANCE-MaP on the V. vulnificus add riboswitch.

Organism:

Vibrio vulnificus

Type:

Other

Platform:

GPL27000

32 Samples

Download data: TAR

(Submitter supplied) In serum-starved and re-fed mouse fibroblast, nascent RNA-seq analysis showed that the BET inhibitor JQ1 antagonized a process regulating PIC formation and a downstream process involved in progressive elongation. To specifically address the role of BRD4 and its interactions with acetylated histones and P-TEFb, YFP-tagged BRD4 proteins (wild type and mutant BRD4) were stably expressed in cells, endogenous BRD4 of which was knocked down by shRNA (shBRD4). more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

Platform:

GPL13112

41 Samples

Download data: BEDGRAPH, BW

(Submitter supplied) To study the role of the bromodomain (BD) in BRD4-dependent gene expression, we compared the function of wild type BRD4 and a mutant BRD4-mBD, which carries a point mutation in each of the two BDs. We first knocked down endogenous BRD4 by shRNA (shBRD4) and then stably reconstituted the cells with shBRD4-resistant YFP-BRD4 (wild type or mBD mutant). Following BRD4 reconstitution, the degree of recovery in gene expression was analyzed by Affymetrix Mouse Exon 1.0 ST array. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6096

8 Samples

Download data: CEL, CHP

(Submitter supplied) hnRNPUL1 plays an important role in the cell nuclei, where it is recruited to DNA damage sites and is involved in the repair of DNA double-strand breaks. Furthermore, this protein is known as a transcriptional repressor of RNA polymerase II genes. In the present study, we have shown that hnRNP UL1 is also localized in the nucleoli. Revealing its function, we figured out that hnRNP UL1 stimulates ribosomal DNA (rDNA) gene transcription. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18573

12 Samples

Download data: TXT