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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes

ABSTRACT: Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes

PROVIDER: PRJNA593600 | ENA |

REPOSITORIES: ENA

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Dataset's files

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			Action	DRS
	SRR10588400.fastq.gz	Fastqsanger.gz
	SRR10588500.fastq.gz	Fastqsanger.gz
	SRR10588401.fastq.gz	Fastqsanger.gz
	SRR10588501.fastq.gz	Fastqsanger.gz
	SRR10588402.fastq.gz	Fastqsanger.gz

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [CUT&Tag]

Project description:Polycomb repressive complexes-1 and -2 (PRC1 and 2), silence developmental genes in spatiotemporally regulated manner during metazoan embryogenesis. How PcG proteins contribute to down-regulation of target genes upon differentiation, however, remains elusive. Here, by differentiating embryonic stem cells into embryoid bodies, we reveal a crucial role of a PCGF1 (Polycomb group RING finger protein 1)-containing variant PRC1 complex (PCGF1-PRC1) to facilitate induced down-regulation of a group of genes. Binding of PCGF1-PRC1 results in down-regulation of transcriptional activity, followed by Histone H2AK119 mono-ubiquitination (H2AK119ub1) and subsequent recruitment of PRC2, to initiate PcG-repressive domain formation. Based on these findings, we propose that PCGF1-PRC1 mediates establishment of PcG-repressive domains at target genes during differentiation.

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [ChIP-seq]

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [RNA-seq]

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes

Project description:Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes

| PRJNA593600 | ENA

Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [RNA-seq]

Project description:Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [RNA-seq]

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [ChIP-seq]

Project description:Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [ChIP-seq]

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [CUT&Tag]

Project description:Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes [CUT&Tag]

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PCGF1-PRC1 links chromatin repression with DNA replication during hematopoietic cell lineage commitment

Project description:Polycomb repressive complexes 1 and 2 (PRC1 and 2) repress lineage inappropriate genes during development to maintain proper cellular identities. To reveal the function of a variant PRC1 containing PCGF1 (PCGF1-PRC1), we prepared PCGF1 interacting proteins by immunoprecipitation and characterized them by LC-MS/MS.

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Variant PCGF1-PRC1 links PRC2 recruitment with differentiation-associated transcriptional inactivation at target genes.

Project description:Polycomb repressive complexes-1 and -2 (PRC1 and 2) silence developmental genes in a spatiotemporal manner during embryogenesis. How Polycomb group (PcG) proteins orchestrate down-regulation of target genes upon differentiation, however, remains elusive. Here, by differentiating embryonic stem cells into embryoid bodies, we reveal a crucial role for the PCGF1-containing variant PRC1 complex (PCGF1-PRC1) to mediate differentiation-associated down-regulation of a group of genes. Upon differentiation cues, transcription is down-regulated at these genes, in association with PCGF1-PRC1-mediated deposition of histone H2AK119 mono-ubiquitination (H2AK119ub1) and PRC2 recruitment. In the absence of PCGF1-PRC1, both H2AK119ub1 deposition and PRC2 recruitment are disrupted, leading to aberrant expression of target genes. PCGF1-PRC1 is, therefore, required for initiation and consolidation of PcG-mediated gene repression during differentiation.

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Variant PCGF1-PRC1 links PRC2 recruitment with induced transcriptional inactivation at target genes

Project description:This SuperSeries is composed of the SubSeries listed below.

2021-05-31 | GSE141488 | GEO