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Nuclear m6A reader YTHDC1 regulates the scaffold function of LINE1 RNA in mouse ESCs and early embryos [ES cell RNA-seq]

ABSTRACT: Nuclear m6A reader YTHDC1 regulates the scaffold function of LINE1 RNA in mouse ESCs and early embryos [ES cell RNA-seq]

PROVIDER: PRJNA660727 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12563916_1.fastq.gz	Fastqsanger.gz
	SRR12563916_2.fastq.gz	Fastqsanger.gz
	SRR12563917_1.fastq.gz	Fastqsanger.gz
	SRR12563917_2.fastq.gz	Fastqsanger.gz
	SRR12563918_1.fastq.gz	Fastqsanger.gz

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Nuclear m6A reader YTHDC1 regulates the scaffold function of LINE1 RNA in mouse ESCs and early embryos [ICM ChIP-seq]

Project description:N6-methyladenosine (m6A) on chromosome-associated regulatory RNAs (carRNAs), including repeat RNAs, plays important roles in tuning the chromatin state and transcription, but the intrinsic mechanism remains unclear. Here, we report that YTHDC1 plays indispensable roles in the embryonic stem cell (ESC) self-renewal and differentiation potency, which highly depends on its m6A-binding ability. Ythdc1 is required for sufficient rRNA synthesis and repression of the 2-cell transcriptional program in ESCs, which recapitulates the transcriptome regulation by the LINE1 scaffold. Detailed analyses revealed that YTHDC1 recognizes m6A on LINE1 RNAs in the nucleus and regulates the formation of the LINE1-NCL partnership and the chromatin recruitment of KAP1. Moreover, the establishment of H3K9me3 on LINE1 scaffold-regulated regions, including 2-cell retrotransposons, is interrupted in Ythdc1-depleted ESCs and inner cell mass (ICM) cells, which consequently increases the transcriptional activities. Our study reveals a role of m6A in regulating the RNA scaffold, providing a new model for the RNA-chromatin cross-talk.

2021-04-09 | GSE157264 | GEO