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Mitotic chromosome condensation resets chromatin to maintain post-anaphase transcriptional homeostasis (RNA-Seq I)

ABSTRACT: Mitotic chromosome condensation resets chromatin to maintain post-anaphase transcriptional homeostasis (RNA-Seq I)

PROVIDER: PRJNA835119 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19086900_1.fastq.gz	Fastqsanger.gz
	SRR19086900_2.fastq.gz	Fastqsanger.gz
	SRR19086901_1.fastq.gz	Fastqsanger.gz
	SRR19086901_2.fastq.gz	Fastqsanger.gz
	SRR19086902_1.fastq.gz	Fastqsanger.gz

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Project description:Mitotic entry correlates with remodeling of histone modifications, chromatin condensation, exclusion of transcription factors from the DNA and broad downregulation of transcription. However, whether mitotic condensation also influences interphase transcription is a question that has not been addressed yet. In this study, we reveal that loss of mitotic chromatin condensation results in a dramatic and spontaneous recruitment of the transcription machinery and unscheduled initiation of gene expression. This includes activation of inducible transcriptional programs, which occurs even in absence of relevant stimuli, such as the GAL system. Strikingly, such an erratic gene expression goes on after exit from mitosis. Thus, we reveal a novel function of mitotic chromosome condensation, i.e. resetting the transcriptome to prevent gene expression from drifting and maintain transcriptional homeostasis during interphase.

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