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Cohesin maintains replication timing to suppress DNA damage on cancer genes [MYC-repli-stress]

ABSTRACT: Cohesin maintains replication timing to suppress DNA damage on cancer genes [MYC-repli-stress]

PROVIDER: PRJNA961641 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR24297606_1.fastq.gz	Fastqsanger.gz
	SRR24297606_2.fastq.gz	Fastqsanger.gz
	SRR24297607_1.fastq.gz	Fastqsanger.gz
	SRR24297607_2.fastq.gz	Fastqsanger.gz
	SRR24297608_1.fastq.gz	Fastqsanger.gz

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Cohesin maintains replication timing to suppress DNA damage on cancer genes

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [MCM5_ChIPseq]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [mES_Repli_Timing]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [mES_Repli_Timing]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [RAD21_ChIPseq]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [RAD21_ChIPseq]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [MYC-repli-stress]

Project description:Cohesin loss-of-function mutations are frequently observed in tumors, but the mechanism is unclear. Here, we found that depletion of RAD21, a core subunit of cohesin, leads to massive genome-wide DNA breaks, up to five-fold, and 147 translocation hotspot genes that are co-mutated with cohesin in multiple cancers. Increased DNA damages are independent of RAD21-loss-induced transcription alteration and loop anchor elimination. However, damage-induced chromosomal translocations coincide with the asymmetrically distributed Okazaki fragments of DNA replication, suggesting that RAD21 depletion causes replication stresses evidenced by the slower replication speed and increased stalled forks. Mechanistically, approximately 30% of the human genome exhibits an earlier replication timing after RAD21 depletion, caused by the early initiation of >900 extra dormant origins. Correspondingly, most translocation hotspot genes lie in timing-altered regions. Therefore, we conclude that cohesin dysfunction causes replication stresses induced by excessive DNA replication initiation, resulting in gross DNA damages that may promote tumorigenesis.

2023-05-18 | GSE230498 | GEO

Cohesin maintains replication timing to suppress DNA damage on cancer genes [PEM-seq]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [PEM-seq]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [PRO-seq]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [PRO-seq]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [NAIL-seq]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [NAIL-seq]

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Cohesin maintains replication timing to suppress DNA damage on cancer genes [HU117_CBE_PEM-seq]

Project description:Cohesin maintains replication timing to suppress DNA damage on cancer genes [HU117_CBE_PEM-seq]