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H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ATAC-Seq]

ABSTRACT: H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ATAC-Seq]

PROVIDER: PRJNA785448 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17090450.fastq.gz	Fastqsanger.gz
	SRR17090451.fastq.gz	Fastqsanger.gz
	SRR17090452.fastq.gz	Fastqsanger.gz
	SRR17090453.fastq.gz	Fastqsanger.gz
	SRR17090454.fastq.gz	Fastqsanger.gz

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H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats

Project description:H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats

| PRJNA785450 | ENA

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [HiC]

Project description:H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [HiC]

| PRJNA785445 | ENA

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [RNA-Seq]

Project description:H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [RNA-Seq]

| PRJNA785459 | ENA

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ChIP-Seq]

Project description:H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ChIP-Seq]

| PRJNA785447 | ENA

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [HiC]

Project description:Six methyltransferases divide labor in establishing genomic profiles of histone H3 lysine 9 methylation (H3K9me), an epigenomic modification involved in the formation of constitutive heterochromatin, gene repression and silencing of retroelements. Among them, SETDB1 is recruited to active chromatin compartments to silence the expression of endogenous retroviruses. In the context of experiments aimed at determining the role of SETDB1 in stimulus-inducible gene expression in macrophages, we unexpectedly found that upon SETDB1 depletion, loss of H3K9me3 in active compartments was associated with increased recruitment of CTCF to >1,600 DNA-binding motifs contained within SINE-B2 repeats, a previously unidentified target of SETDB1-mediated repression. CTCF is an essential regulator of chromatin folding that restrains DNA looping by cohesin, thus creating boundaries among adjacent topological domains. Increased CTCF binding to SINE-B2 repeats generated novel boundaries within topological domains containing lipopolysaccharide-inducible genes, correlating with their impaired regulation in response to stimulation. These data indicate a role of H3K9me3 in restraining genomic distribution and activity of CTCF, with impact on chromatin organization and gene regulation.

2022-03-31 | GSE189973 | GEO

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ATAC-Seq]

2022-03-31 | GSE189970 | GEO

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [ChIP-Seq]

2022-03-31 | GSE189971 | GEO

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats [RNA-Seq]

2022-03-31 | GSE189974 | GEO

H3K9 trimethylation in active compartments optimizes stimulus-regulated transcription by restricting usage of CTCF sites in SINE-B2 repeats

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

2022-03-31 | GSE189975 | GEO

H3K9 trimethylation in active chromatin restricts the usage of functional CTCF sites in SINE B2 repeats.

Project description:Six methyltransferases divide labor in establishing genomic profiles of histone H3 lysine 9 methylation (H3K9me), an epigenomic modification controlling constitutive heterochromatin, gene repression, and silencing of retroelements. Among them, SETDB1 is recruited to active chromatin domains to silence the expression of endogenous retroviruses. In the context of experiments aimed at determining the impact of SETDB1 on stimulus-inducible gene expression in macrophages, we found that loss of H3K9me3 caused by SETDB1 depletion was associated with increased recruitment of CTCF to >1600 DNA binding motifs contained within SINE B2 repeats, a previously unidentified target of SETDB1-mediated repression. CTCF is an essential regulator of chromatin folding that restrains DNA looping by cohesin, thus creating boundaries among adjacent topological domains. Increased CTCF binding to SINE B2 repeats enhanced insulation at hundreds of sites and increased loop formation within topological domains containing lipopolysaccharide-inducible genes, which correlated with their impaired regulation in response to stimulation. These data indicate a role of H3K9me3 in restraining genomic distribution and activity of CTCF, with an impact on chromatin organization and gene regulation.

| S-EPMC9067402 | biostudies-literature

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