Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

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

ABSTRACT: 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.

ORGANISM(S): Mus musculus

PROVIDER: GSE200701 | GEO | 2022/10/28

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (RNA-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.

2022-10-28 | GSE200699 | GEO

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (PRO-Seq)

2022-10-28 | GSE200698 | GEO

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (ChIP-Seq)

2022-10-28 | GSE200696 | GEO

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (RNA-Seq 2)

2022-10-28 | GSE211733 | GEO

Integrator endonuclease drives promoter-proximal termination at all RNAPII transcribed loci (ChIP-Seq 2)

2022-10-28 | GSE211732 | GEO

The Human Integrator Complex Facilitates Transcriptional Elongation by Endonucleolytic Cleavage of Nascent Transcripts

Project description:Transcription by RNA polymerase II (RNAPII) is pervasive in the human genome. However, the mechanisms controlling transcription at promoters and enhancers remain enigmatic. Here, we demonstrate that Integrator subunit 11 (INTS11), the catalytic subunit of the Integrator complex, regulates transcription at these loci through its endonuclease activity. Promoters of genes require INTS11 to cleave nascent transcripts associated with paused RNAPII and induce their premature termination in the proximity of the +1 nucleosome. The turnover of RNAPII permits the subsequent recruitment of an elongation-competent RNAPII complex, leading to productive elongation. In contrast, enhancers require INTS11 catalysis not to evict paused RNAPII but rather to terminate enhancer RNA transcription beyond the +1 nucleosome. These findings are supported by the differential occupancy of negative elongation factor (NELF), SPT5, and tyrosine-1-phosphorylated RNAPII. This study elucidates the role of Integrator in mediating transcriptional elongation at human promoters through the endonucleolytic cleavage of nascent transcripts and the dynamic turnover of RNAPII.

2020-07-21 | GSE125535 | GEO

The Human Integrator Complex Facilitates Transcriptional Elongation by Endonucleolytic Cleavage of Nascent Transcripts

2020-07-21 | GSE125534 | GEO

INTAC endonuclease and phosphatase modules have distinct roles in transcription (TT-Seq)

Project description:Gene expression in metazoans is controlled by promoter-proximal pausing of RNA polymerase II, which can undergo productive elongation or early termination. Integrator-PP2A (INTAC) plays a crucial role in determining the fate of paused polymerases, but the underlying mechanisms remain unclear. Here we establish a rapid degradation system to dissect the direct functions of INTAC RNA endonuclease and phosphatase modules. We find that both catalytic modules function at most if not all active promoters and enhancers, yet differentially affect polymerase fate. The endonuclease module induces early termination, with its disruption leading to accumulation of non-competent polymerases and downregulation of highly expressed genes, while competent polymerases accumulate at lowly expressed genes and non- coding elements, leading to their upregulation. The phosphatase module primarily prevents the release of paused polymerases and limits transcriptional activation, especially for highly paused genes. Thus both INTAC’s catalytic modules have unexpectedly general yet distinct roles in dynamic transcriptional control. We performed PRO-seq, ChIP-seq, or TT-seq to investigate the role of INTAC in regulating transcription.

2023-04-19 | GSE223264 | GEO

Integrator enforces the fidelity of transcriptional termination at protein-coding genes

Project description:Integrator regulates the 3’-end processing and termination of multiple classes of noncoding RNAs. Depletion of INTS11, the catalytic subunit of Integrator, or ectopic expression of its catalytic dead enzyme impairs the 3’-end processing and termination of a set of protein coding transcripts termed Integrator-regulated termination (IRT) genes. This defect is manifested by increased RNA polymerase II (RNAPII) readthrough and occupancy of serine-2 phosphorylated RNAPII, de-novo trimethylation of lysine 36 on histone H3, and a compensatory elevation of the cleavage and polyadenylation (CPA) complex in the downstream regions. 3’-RNA-sequnecing reveals that proximal polyadenylation site usage relies on the endonuclease activity of INTS11. The DNA sequence encompassing the transcription end sites of IRT genes feature downstream polyadenylation motifs and an enrichment of GC content that permits the formation of secondary structures within the 3’UTR. Taken together, this study identifies a subset of protein-coding transcripts whose 3’-end processing requires the Integrator complex.

2021-11-10 | GSE169680 | GEO

INTAC endonuclease and phosphatase modules differentially regulate transcription by RNA polymerase II

Project description:Gene expression in metazoans is controlled by promoter-proximal pausing of RNA polymerase II, which can undergo productive elongation or early termination. Integrator-PP2A (INTAC) plays a crucial role in determining the fate of paused polymerases, but the underlying mechanisms remain unclear. Here we establish a rapid degradation system to dissect the direct functions of INTAC RNA endonuclease and phosphatase modules. We find that both catalytic modules function at most if not all active promoters and enhancers, yet differentially affect polymerase fate. The endonuclease module induces early termination, with its disruption leading to accumulation of non-competent polymerases and downregulation of highly expressed genes, while competent polymerases accumulate at lowly expressed genes and non- coding elements, leading to their upregulation. The phosphatase module primarily prevents the release of paused polymerases and limits transcriptional activation, especially for highly paused genes. Thus both INTAC’s catalytic modules have unexpectedly general yet distinct roles in dynamic transcriptional control. This SuperSeries is composed of the SubSeries listed below.

2023-04-19 | GSE223265 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data