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Mus musculus

ABSTRACT: Role of Prdm14 in mouse embryonic stem cells: ChIP-seq and RNA-seq analyses

PROVIDER: PRJNA134151 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR072984.fastq.gz	Fastqsanger.gz
	SRR072985.fastq.gz	Fastqsanger.gz
	SRR072986.fastq.gz	Fastqsanger.gz
	SRR072987.fastq.gz	Fastqsanger.gz
	SRR072988.fastq.gz	Fastqsanger.gz

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Role of Prdm14 in mouse embryonic stem cells: ChIP-seq and RNA-seq analyses

Project description:Prdm14 is a PR-domain and zinc-finger protein whose expression is restricted to the pluripotent cells of an early embryo, embryonic stem cells (ESCs), and germ cells. Here we show that Prdm14 safeguards mouse ESC maintenance by preventing induction of extraembryonic endoderm (ExEn) fates. Conversely, Prdm14 overexpression impairs ExEn differentiation during embryoid body (EB) formation. Prdm14 occupies and represses genomic loci encoding ExEn differentiation factors, while also binding to and promoting expression of genes associated with ESC self-renewal. Prdm14-bound genomic regions significantly overlap those occupied by Nanog and Oct4, are enriched in a chromatin signature associated with distal regulatory elements, and contain a unique DNA-sequence motif recognized by Prdm14 in vitro. Our work identifies Prdm14 as a new member of mouse ESC (mESC) transcriptional network, which plays a dual role as a context-dependent transcriptional repressor or activator at distal silencers and enhancers. [ChIP-seq] Genome-wide mapping of Prdm14 binding sites in mouse embryonic stem cells: A FLAG-HA tagged Prdm14 (FH-Prdm14) mESC line was established. FLAG-HA double ChIP (ChIP with FLAG antibody followed by ChIP with HA antibody) was performed with FH-Prdm14 mESCs (Prdm14-ChIPseq) and as a negative control, wildtype mESCs (FLAG-HA_ChIPseq). H3K4me1 ChIPseq in mouse ES cells. Using published H3K4me1 data, we found there is a correlation between Prdm14 binding and H3K4me1 marks. So we obtained our own H3K4me1 data, using the wildtype mESCs. [RNA-seq] Global RNAseq analysis of Prdm14 knockdown in mouse embryonic stem cells: Analysis of poly(A)+ RNA from mESCs treated with non-targeting control siRNA and Prdm14 siRNA.

2010-12-23 | E-GEOD-25409 | biostudies-arrayexpress

ETO Family Protein Mtgr1 Mediates Prdm14 Functions in Stem Cell Maintenance

Project description:Prdm14 is a sequence-specific transcriptional regulator of embryonic stem cell (ESC) pluripotency and primordial germ cell (PGC) formation. It exerts its function, at least in part, through repressing genes associated with epigenetic modification and cell differentiation. Here, we show that this repressive function is mediated through an ETO-family co-repressor Mtgr1, which tightly binds to the pre-SET/SET domains of Prdm14 and co-occupies its genomic targets in mouse ESCs. Structure-guided point mutants abrogated the Prdm14-Mtgr1 association and disrupted Prdm14's function in mESC gene expression and PGC formation in vitro. Altogether, our work uncovers the molecular mechanism underlying Prdm14-mediated repression. Examination of Prdm14 and Mtgr1 occupancy by ChIP-seq and effects on gene expression in mouse embryonic stem cells

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