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Genome-wide mapping of RNA Pol II

ABSTRACT: Genome-wide mapping of RNA Pol II

PROVIDER: PRJNA662228 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12606610.fastq.gz	Fastqsanger.gz
	SRR12606611.fastq.gz	Fastqsanger.gz
	SRR12606612.fastq.gz	Fastqsanger.gz
	SRR12606613.fastq.gz	Fastqsanger.gz
	SRR12606614.fastq.gz	Fastqsanger.gz

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Genome-wide mapping of RNA Pol II

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Genome-wide mapping of UPF1 and Pol II [ChIP-seq]

Project description:ChIP with NMD core componenet UPF1 antibody in normal S2 cells and ChIP with Pol II Ser2 antibodies in S2 cells. UPF1 is an ATP-driven RNA helicase required for efficient nonsense mediated mRNA decay in eukaryotes. Although it is currently understood that UPF1 primarily acts on the 3’UTR of translating mRNAs in the cytoplasm, our data indicates that this is a highly dynamic protein that is rapidly shuttling between nucleus and cytoplasm in Drosophila. Additionally, ChIP-seq analysis in different cell types demonstrates genome-wide association of UPF1 with nascent RNAs at most of the active Pol II transcription sites, and at some specific Pol III genes. Notably, intron recognition appears to interfere with association and translocation of UPF1 on nascent transcripts. Cells depleted of UPF1 show defects in nuclear processes such as mRNA export and transcription site retention. These data, thus redefine UPF1 as a global player in mRNA based processes in the nucleus as well as the cytoplasm.

2019-04-01 | GSE116806 | GEO

Genome-wide map of Pol II and Flag-LARP7 in human HeLa cells

Project description:We generated genome-wide maps of Pol II and Flag-LARP7 in human HeLa cells. We find that Flag-LARP7 and Pol II co-locolize on Pol II-specific sn/snoRNA genes.

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Genome-wide mapping of yeast RNA polymerase II termination

Project description:Using a modification of the yeast anchor away and PAR-CLIP protocols, we have mapped the position of Pol II genome-wide in living yeast cells after depletion of components of either the polyadenylation (pA) or non-pA termination complexes. Depletion of Ysh1 from the nucleus does not lead to readthrough transcription. In contrast, depletion of the termination factor Nrd1 leads to widespread runaway elongation of non-pA transcripts. Depletion of Sen1 also leads to readthrough at non-pA terminators but in contrast to Nrd1 this readthrough appears less processive. Examination of PAR-CLIP sequencing data of Pol II after removal of different transcriptional termination factors.

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Genome-wide maps of Pol II pSer5 state in lung smooth muscle cells

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Genome wide mapping for TF binding sites for Pol II, JunD, cFos, Max & cMyc in GM12878 (ENCODE Project)

Project description:We performed ChIP-Seq for 5 different transcription factors (Pol II, JunD, cFos, Max and cMyc) as part of the ENCODE project in order to determine sites of allele-specific binding. This was done in the GM12878 cell line which was genotyped as part of the pilot II phase of the 1000 genomes project. There is a matching RNA-Seq experiemnt performed on the same cell line. For data usage terms and conditions, please refer to http://www.genome.gov/27528022 and http://www.genome.gov/Pages/Research/ENCODE/ENCODEDataReleasePolicyFinal2008.pdf Mapping TF binding sites for 5 different TFs to assess allele-specific binding

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Project description:The precise regulation of RNA Polymerase II (Pol II) transcription after genotoxic stress is crucial for proper execution of the DNA damage-induced stress response. While stalling of Pol II on transcription-blocking lesions (TBLs) blocks transcript elongation and initiates DNA repair in cis, TBLs additionally elicit a response in trans that regulates transcription genome-wide. Here we uncover that after an initial elongation block in cis, TBLs trigger the genome-wide VCP-mediated proteasomal degradation of promoter-paused Pol II in trans. This degradation is mechanistically distinct from processing of TBL-stalled Pol II, is signaled via GSK3, and contributes to the TBL-induced transcription block, even in transcription-coupled repair-deficient cells. Thus, our data reveal the targeted degradation of promoter-bound Pol II as an important new component of the transcription stress response that enables the genome-wide adaptation of transcription to genotoxic stress.

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Genome-wide analyses of chromatin interactions after the loss of Pol I, Pol II and Pol III

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