Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

H4K20me3 co-localizes with activating histone modifications at transcriptionally dynamic regions in embryonic stem cells

ABSTRACT: H4K20me3 co-localizes with activating histone modifications at transcriptionally dynamic regions in embryonic stem cells

PROVIDER: PRJNA476467 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
	SRR7351425.fastq.gz	Fastqsanger.gz
	SRR7351426.fastq.gz	Fastqsanger.gz
	SRR7351427.fastq.gz	Fastqsanger.gz
	SRR7351428.fastq.gz	Fastqsanger.gz
	SRR7351429.fastq.gz	Fastqsanger.gz

Items per page:

1 - 5 of 5

Similar Datasets

H4K20me3 co-localizes with activating histone modifications at transcriptionally dynamic regions in embryonic stem cells

Project description:Bivalent chromatin domains consisting of the activating histone 3 lysine 4 trimethylation (H3K4me3) and repressive histone 3 lysine 27 trimethylation (H3K27me3) histone modifications are enriched at developmental genes that are repressed in embryonic stem cells but active during differentiation. However, it is unknown whether another repressive histone modification, histone 4 lysine 20 trimethylation (H4K20me3), co-localizes with activating histone marks in ES cells. Here, we describe the previously uncharacterized coupling of the repressive H4K20me3 heterochromatin mark with the activating histone modifications H3K4me3 and histone 3 lysine 36 trimethylation (H3K36me3), and transcriptional machinery (RNA polymerase II; RNAPII), in ES cells. These newly described bivalent domains consisting of H3K4me3/H4K20me3 are predominantly located in intergenic regions and near transcriptional start sites of active genes, while H3K36me3/H4K20me3 are located in intergenic regions and within gene body regions of active genes. Global sequential ChIP, also termed reChIP-Seq, confirmed the simultaneous presence of H3K4me3 and H4K20me3 at the same genomic regions in ES cells. Genes containing H3K4me3/H4K20me3 exhibit decreased RNAPII pausing and are poised for deactivation of RNAPII binding during differentiation relative to H3K4me3 marked genes. An evaluation of transcription factor (TF) binding motif enrichment revealed that DNA sequence may play a role in shaping the landscape of these novel bivalent domains. Moreover, H3K4me3/H4K20me3 and H3K36me3/H4K20me3 bound regions are enriched with repetitive LINE and LTR elements.

2018-06-18 | GSE115907 | GEO

H4K20me3 co-localizes with activating histone modifications at transcriptionally dynamic regions in embryonic stem cells.

Project description:BackgroundBivalent chromatin domains consisting of the activating histone 3 lysine 4 trimethylation (H3K4me3) and repressive histone 3 lysine 27 trimethylation (H3K27me3) histone modifications are enriched at developmental genes that are repressed in embryonic stem cells but active during differentiation. However, it is unknown whether another repressive histone modification, histone 4 lysine 20 trimethylation (H4K20me3), co-localizes with activating histone marks in ES cells.ResultsHere, we describe the previously uncharacterized coupling of the repressive H4K20me3 heterochromatin mark with the activating histone modifications H3K4me3 and histone 3 lysine 36 trimethylation (H3K36me3), and transcriptional machinery (RNA polymerase II; RNAPII), in ES cells. These newly described bivalent domains consisting of H3K4me3/H4K20me3 are predominantly located in intergenic regions and near transcriptional start sites of active genes, while H3K36me3/H4K20me3 are located in intergenic regions and within gene body regions of active genes. Global sequential ChIP, also termed reChIP-Seq, confirmed the simultaneous presence of H3K4me3 and H4K20me3 at the same genomic regions in ES cells. Genes containing H3K4me3/H4K20me3 exhibit decreased RNAPII pausing and are poised for deactivation of RNAPII binding during differentiation relative to H3K4me3 marked genes. An evaluation of transcription factor (TF) binding motif enrichment revealed that DNA sequence may play a role in shaping the landscape of these novel bivalent domains. Moreover, H3K4me3/H4K20me3 and H3K36me3/H4K20me3 bound regions are enriched with repetitive LINE and LTR elements.ConclusionsOverall, these findings highlight a previously undescribed subnetwork of ES cell transcriptional circuitry that utilizes dual marking of the repressive H4K20me3 mark with activating histone modifications.

| S-EPMC6029396 | biostudies-literature

Genome-wide mapping of H4K20me3 in proliferating and senescent IMR90 cells.

Project description:Cellular senescence is a stable proliferation arrest and tumor suppressor mechanism. Abundance of histone modification, H4K20me3, has been reported to increase in senescent cells. Generally, H4K20me3 promotes formation of compacted transcriptionally silent constitutive heterochromatin, but its specific role in senescence is unknown. Here, we show that in senescent cells H4K20me3 is enriched at specific families of gene repeats (ZNFs, Olfactory Receptors, Protocadherins), and DNA sequences contained within senescence-associated heterochromatin (senescence-associated heterochromatin (SAHF)). Furthermore, in senescent cells, but not proliferating cells, H4K20me3 is also markedly enriched at bodies of repressed genes, including proliferation-promoting genes. Ectopic expression of SUV420H2, responsible for deposition of H4K20me3, reinforces senescence-associated proliferation arrest, and slows proliferation of transformed cells and tumorigenesis in vivo. These results indicate a dedicated role for H4K20me3 in control of nuclear organization and gene expression in senescent cells and stable senescence-associated proliferation arrest and tumor suppression.

2016-05-27 | GSE59316 | GEO

TTC7A Localizes to Specific Regions of Chromatin

Project description:TTC7A Localizes to Specific Regions of Chromatin

| PRJEB22730 | ENA

H4K20me3 methyltransferase SUV420H2 regulates pluripotent embryonic stem cells [ChIP-seq]

2020-11-13 | GSE130721 | GEO

H4K20me3 methyltransferase SUV420H2 shapes the chromatin landscape of pluripotent embryonic stem cells

Project description:Heterochromatin, which is a densely packed chromatin state that is transcriptionally silent, is a critical regulator of gene expression. However, it is unclear how the repressive histone modification, H4K20me3, or the histone methyltransferase, SUV420H2, regulate embryonic stem (ES) cell fate by patterning the epigenetic landscape. Here, we report that depletion of SUV420H2 leads to a near complete loss of H4K20me3 genome-wide, dysregulated gene expression, and delayed ES cell differentiation. SUV420H2-bound regions are enriched with repetitive DNA elements, which are de-repressed in SUV420H2 knockout ES cells. Moreover, SUV420H2 regulation of H4K20me3-marked heterochromatin controls chromatin architecture, including fine-scale interactions between gene regulatory elements in pluripotent ES cells. SUV420H2 plays a critical role in stabilizing the three-dimensional (3D) chromatin landscape of ES cells, where loss of SUV420H2 results in A/B compartment switching, perturbed chromatin insulation, and altered chromatin interactions of pericentric heterochromatin, indicative of localized decondensation. In addition, depletion of SUV420H2 resulted in compromised interactions between H4K20me3 and gene regulatory regions. Together, these findings describe a novel role for SUV420H2 in regulating the chromatin landscape of ES cells.

2020-11-13 | GSE130723 | GEO

Chromatin immunoprecipitation to identify histone modifications (H3K9me3, H3K9Ac, H3K4me3, H4K20me3) in Plasmodium falciparum wild type and Sir2 knock-outs

Project description:Histone modifications (H3K9me3, H3K9Ac, H3K4me3, H4K20me3) across Plasmodium falciparum genome in 3D7 wt and 3D7 Sir2 KO

2009-02-24 | E-MEXP-1806 | biostudies-arrayexpress

ChIP-SEQ of H4K20me3 in BCSCsSETD4 and BCSCsGFP

Project description:We report the ChIP-SEQ results of H4K20me3 in BCSCsSETD4 and BCSCsGFP. To explore epigenetic regulation by H4K20me3 in BCSC quiescence, we performed chromatin immunoprecipitation sequencing (ChIP-seq) using BCSCsSETD4 and BCSCsGFP. Quiescent BCSCsSETD4 showed marked enrichment of H4K20me3 modifications relative to BCSCsGFP.

2019-10-25 | GSE123841 | GEO

H4K20me3 methyltransferase SUV420H2 shapes the three-dimensional chromatin landscape of pluripotent embryonic stem cells [RNA-seq]

2020-11-13 | GSE130696 | GEO

IRX2 regulates angiotensin II-induced cardiac fibrosis by transcriptionally activating Egr1 in mice

Project description:IRX2 regulates angiotensin II-induced cardiac fibrosis by transcriptionally activating Egr1 in mice

| PRJNA990937 | ENA