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Role of Set2 in regulating transcription coupled-nucleotide excision repair

ABSTRACT: Role of Set2 in regulating transcription coupled-nucleotide excision repair

PROVIDER: PRJNA745073 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR15082376.fastq.gz	Fastqsanger.gz
	SRR15082377.fastq.gz	Fastqsanger.gz
	SRR15082378.fastq.gz	Fastqsanger.gz
	SRR15082379.fastq.gz	Fastqsanger.gz
	SRR15082380.fastq.gz	Fastqsanger.gz

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Role of Set2 in regulating transcription coupled-nucleotide excision repair

Project description:Repair of UV damage from the transcribed strand (TS) of yeast genes is rapid due to the transcription coupled nucleotide excision repair (TC-NER) pathway. TC-NER is triggered when RNA polymerase stalls at UV damage, such as a UV-induced cyclobutane pyrimidine dimer (CPD). During transcription, the histone methyltransferase Set2 methylates histone H3K36, but it is not known if Set2 regulates TC-NER. Here, we report genome-wide repair maps of UV-induced cyclobutane pyrimidine dimers (CPDs) in yeast cells lacking Set2.

2022-02-21 | GSE179794 | GEO

Role of H3K36 methylation in regulating transcription coupled-nucleotide excision repair

Project description:We characterized the role of H3K36 methylation in regulating repair of UV damage from the transcribed strand (TS) of yeast genes by the transcription coupled nucleotide excision repair (TC-NER) pathway. TC-NER is triggered when RNA polymerase stalls at UV damage, such as a UV-induced cyclobutane pyrimidine dimer (CPD). During transcription, the histone methyltransferase Set2 methylates histone H3K36, but it is not known if H3K36 methylation regulates TC-NER. Here, we report genome-wide repair maps of UV-induced cyclobutane pyrimidine dimers (CPDs) in yeast cells containing mutants in histone H3K36 (or set2).

2022-02-21 | GSE194101 | GEO

Genome-wide analysis of human global and transcription-coupled excision repair of UV damage at single-nucleotide resolution

Project description:We developed a method for genome-wide mapping of DNA excision repair named XR-seq (eXcision Repair-seq). Human nucleotide excision repair generates two incisions surrounding the site of damage, creating a ~30-mer. In XR-seq, this fragment is isolated and subjected to high-throughput sequencing. We used XR-seq to produce stranded, nucleotide-resolution maps of repair of two UV-induced DNA damages in human cells, cyclobutane pyrimidine dimers (CPDs) and (6-4) pyrimidine-pyrimidone photoproducts ((6-4)PPs). In wild-type cells, CPD repair was highly associated with transcription, specifically with the template strand. Experiments in cells defective in either transcription-coupled excision repair or general excision repair isolated the contribution of each pathway to the overall repair pattern, and showed that transcription-coupled repair of both photoproducts occurs exclusively on the template strand. XR-seq maps capture transcription-coupled repair at sites of divergent gene promoters and bi-directional eRNA production at enhancers. XR-seq data also uncovered the repair characteristics and novel sequence preferences of CPDs and (6-4)PPs. XR-seq and the resulting repair maps will facilitate studies of the effects of genomic location, chromatin context, transcription, and replication on DNA repair in human cells. We have performed XR-seq for two types of UV-induced damages (CPD and (6-4)PP) in three different cell lines: NHF1, XP-C (XP4PA-SV-EB, GM15983)), and CS-B (CS1ANps3g2, GM16095). Two biological replicates were performed for each experiment, in which independent cell populations were UV treated and subjected to XR-seq.

2015-04-19 | E-GEOD-67941 | biostudies-arrayexpress

Genome-wide repair maps of nucleotide excision repair in Drosophila and S2 cells.

Project description:We report the application of single-molecule-based sequencing technology (XR-seq) for high-throughput profiling of nucleotide excision repair in Drosophila four developmental stages and S2 cells. By obtaining over six billion bases of sequence from UV and cisplatin damage antibodies immunoprecipitated excision DNA, we generated genome-wide nucleotide excision repair maps of Drosophila Embryo, Larva, Pupa , two gender of adults and S2 cells . We find that Drosophila performs transcription-coupled repair (TCR) at all its developmental stages. S2 cell carry out TCR response to both UV and Cisplatin damage. Finally, we show that XPC repair factor is required for both global and transcription-coupled repair in Drosophila. This study provides the mechanism of nucleotide excision repair of Drosophila in vivo and vitro response to UV and Cisplatin damage.

2022-02-25 | GSE184926 | GEO

Role of H3K36 methylation in regulating transcription coupled-nucleotide excision repair

Project description:Role of H3K36 methylation in regulating transcription coupled-nucleotide excision repair

| PRJNA799055 | ENA

Genome-wide analysis of human global and transcription-coupled excision repair of UV damage at single-nucleotide resolution

2015-04-19 | GSE67941 | GEO

Transcriptional analysis of nucleotide excision repair defects

Project description:Transcriptional analysis of nucleotide excision repair defects

| PRJNA714383 | ENA

Trabectedin derails transcription-coupled nucleotide excision repair to induce DNA breaks in highly transcribed genes

Project description:Trabectedin derails transcription-coupled nucleotide excision repair to induce DNA breaks in highly transcribed genes

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Trabectedin derails transcription-coupled nucleotide excision repair to induce DNA breaks in highly transcribed genes

Project description:Most genotoxic anticancer agents fail in tumors with intact DNA repair. Therefore, trabectedin, a unique agent more toxic to cells with active DNA repair, specifically transcription-coupled nucleotide excision repair (TC-NER), provides new therapeutic opportunities. To unlock the potential of trabectedin and inform its application in precision oncology, a full mechanistic understanding of the drug’s TC-NER-dependent toxicity is needed. Here, we determined that abortive TC-NER of trabectedin-DNA adducts forms persistent single-strand breaks (SSBs) by blocking the second of the two sequential NER incisions by XPG. We mapped the 3’-hydroxyl groups of SSBs originating from the first NER incision at trabectedin lesions, recording TC-NER on a genome-wide scale. We showed that trabectedin-induced SSBs primarily occur in transcribed strands of active genes and peak near transcription start sites. Frequent SSBs were also found outside gene bodies, revealing TC-NER connection to divergent transcription from promoters. This work advances trabectedin as a tool compound for precision oncology and for studying TC-NER and transcription.

2023-12-22 | GSE245883 | GEO

Role of rsc2 in nucleotide excision repair in yeast

Project description:Nucleosomes are a significant barrier to the repair of UV damage because they impede damage recognition by nucleotide excision repair (NER). The RSC chromatin remodeler functions in cells to promote DNA access by moving or evicting nucleosomes and has been linked to NER in yeast. Here, we report genome-wide repair maps of UV-induced cyclobutane pyrimidine dimers (CPDs) in yeast cells lacking Rsc2.

2021-04-12 | GSE168369 | GEO

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