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Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [DRB/TT-seq]

ABSTRACT: Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [DRB/TT-seq]

PROVIDER: PRJNA867748 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR20995800.fastq.gz	Fastqsanger.gz
	SRR20995801.fastq.gz	Fastqsanger.gz
	SRR20995778.fastq.gz	Fastqsanger.gz
	SRR20995779.fastq.gz	Fastqsanger.gz
	SRR20995780.fastq.gz	Fastqsanger.gz

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Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [TT-seq]

Project description:Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [TT-seq]

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Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [DRB/TT-seq]

Project description:To investigate the role of catalytic subunit of the Integrator complex, INTS11, during the transcription cycle, we established U2OS cell line in which INTS11 has been knock down by siRNA.

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Human Integrator provides a quality checkpoint during elongation to facilitate RNA polymerase II processivity [ChIP-seq]

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Integrator complex regulates NELF-mediated RNA Polymerase II pause/release and processivity at coding genes [RNA-seq]

Project description:RNAPII pausing/termination shortly after initiation is a hallmark of gene regulation. However, the molecular mechanisms involved are still to be uncovered. Here, we show that NELF interacts with Integrator complex subunits (INTScom) forming a stable complex with RNPII and Spt5. The interaction between NELF and INTScom subunits is RNA and DNA independent. Using both HIV-1 promoter and genome wide analyses, we demonstrate that Integrator subunits specifically control NELF-mediated RNAPII pause/release at coding genes. The strength of RNAPII pausing is determined by the nature of the NELF-associated complex. Interestingly, in addition to controlling RNAPII pause release INTS11 catalytic subunit of the INTScom is required for the synthesis of full length mRNA. Finally, INTScom-target genes are enriched in HIV-1 TAR/ NELF-binding element and in a 3’box sequence required for snRNA biogenesis. Revealing these unexpected functions of INTScom in regulating RNAPII pausing/release and completion of mRNA synthesis of NELF-target genes will contribute to our understanding of the gene expression cycle. Genome-wide expression in HeLa cells in the absence of Integrator 11, or NELF or mock (control) depleted by strand-specific RNASeq (Illumina)

2015-05-19 | E-GEOD-60585 | biostudies-arrayexpress

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (TT-seq)

Project description:Pausing of RNA polymerase II (RNAPII) in early elongation is critical for gene regulation. Paused RNAPII can be released into productive elongation by the kinase P-TEFb or targeted for premature termination by the Integrator complex. Integrator comprises endonuclease and phosphatase activities, driving termination through cleavage of nascent RNA and removal of stimulatory phosphorylation. To probe the direct consequences of Integrator activity, we generated a degron system to rapidly deplete the Integrator endonuclease INTS11. Degradation of INTS11 elicits a nearly universal increase in RNAPII escape from promoter regions. However, these RNAPII complexes fail to achieve optimal elongation rates and reveal continued Integrator phosphatase activity. Short transcripts are thus selectively upregulated by INTS11 loss, including many non-coding RNAs, transcription factors and signaling regulators. Together, our data indicate a common function for INTS11 at all RNAPII loci, with differential effects on particular genes, pathways or RNA biotypes reflecting transcript lengths rather than Integrator specificity.

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Integrator complex regulates NELF-mediated RNA Polymerase II pause/release and processivity at coding genes [ChIP-seq]

Project description:RNAPII pausing/termination shortly after initiation is a hallmark of gene regulation. However, the molecular mechanisms involved are still to be uncovered. Here, we show that NELF interacts with Integrator complex subunits (INTScom) forming a stable complex with RNPII and Spt5. The interaction between NELF and INTScom subunits is RNA and DNA independent. Using both HIV-1 promoter and genome wide analyses, we demonstrate that Integrator subunits specifically control NELF-mediated RNAPII pause/release at coding genes. The strength of RNAPII pausing is determined by the nature of the NELF-associated complex. Interestingly, in addition to controlling RNAPII pause release INTS11 catalytic subunit of the INTScom is required for the synthesis of full length mRNA. Finally, INTScom-target genes are enriched in HIV-1 TAR/ NELF-binding element and in a 3’box sequence required for snRNA biogenesis. Revealing these unexpected functions of INTScom in regulating RNAPII pausing/release and completion of mRNA synthesis of NELF-target genes will contribute to our understanding of the gene expression cycle. Binding profiles of Integrator subunits in HeLa cells by ChIP-Seq (Illumina) Please note that the MACS14*.tar.gz contains MACS output bed and xls files and the 'readme.txt' contains a detailed description of each file.

2015-05-19 | E-GEOD-60584 | biostudies-arrayexpress

Integrator complex regulates NELF-mediated RNA Polymerase II pause/release and processivity at coding genes.

Project description:Integrator complex regulates NELF-mediated RNA Polymerase II pause/release and processivity at coding genes.

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