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Genome-wide maps of the H3K27me3 histone modification in wild-type or SUZ12-mutant ipNF05.5 cells.

ABSTRACT: Using ChIP-seq, we profiled the H3K27me3 histone mark in wild-type or SUZ12-mutant ipNF05.5 cells.

OTHER RELATED OMICS DATASETS IN: PXD012547

ORGANISM(S): Homo sapiens

PROVIDER: GSE118183 | GEO | 2019/03/03

REPOSITORIES: GEO

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Genome-wide maps of the H3K27me3 histone modification in wild-type or SUZ12-mutant ipNF05.5 cells.

Project description:Genome-wide maps of the H3K27me3 histone modification in wild-type or SUZ12-mutant ipNF05.5 cells.

| PRJNA484778 | ENA

Chip-chip from HepG2 cells with EZH2, SUZ12 and H3K27me3

Project description:Polycomb group (PcG) proteins including EZH2, SUZ12 and so on, which specifically catalyze trimethylation of histone 3 lysine 27 (H3K27me3), and methylated H3K27 can be recognized by other specific binding proteins to compress chromatin structure, leading to the transcriptional repression of the target genes. To completely understand the epigenetic profile and molecular network of PcG in HCC, we performed ChIP-on-chip screens with EZH2, SUZ12 and H3K27me3 antibodies in HepG2 cells. Comparison of ChIP-on-chip results from EZH2, SUZ12 and H3K27me3.

2013-11-13 | E-GEOD-52300 | biostudies-arrayexpress

H3K27me3 is maintained at a reduced level in Suz12(Bgal/Bgal) ESCs [RNA-Seq]

Project description:Suz12(Bgal/Bgal) ESCs express a truncated form of Suz12 fused to Beta-galactosidase. These cells maintain a reduced level of H3K27me3 despite this mutation to a core component of PRC2, unlike Eed-/- ESCs whose H3K27me3 is ablated. RNA-seq was performed in wild type and Suz12(Bgal/Bgal) ESCs, here used to demonstrate the coverage of the Suz12 gene in mRNA reads.

2013-07-22 | E-GEOD-47484 | biostudies-arrayexpress

Histone post translational modification mass sprectrometry SUZ12 exon 4 cell lines

Project description:We investigate the contribution of each SUZ12 isoform on PRC2 activity on chromatin using our different ESC lines. As an additional comparison for ∆ex4 cells (SUZ12-S), we included an ESC clone in which an unsuccessful CRISPR editing event resulted in a mutant allele with nearly constitutive splicing of exon 4 (herein, CSex4) and normal Suz12 expression levels (expressing only SUZ12-L). First, we profiled H3K27 bulk PTMs by WB and observed that, while CSex4 cells showed no major differences to control cells, ∆ex4 cells displayed lower levels of H3K27me2 and -me3, with higher levels of mono-methylation and acetylation. Similar results were obtained when comparing SUZ12-L and SUZ12-S ESC rescue lines. To validate these findings with an antibody-independent technique, and to additionally profile other histone PTMs, we analysed these cells with histone-MS. In line with the previous estimates26, WT cells displayed approximately 85% of H3K27 methylation. This proportion was largely similar in CSex4 cells, while it dropped to ~50% in ∆ex4 cells, with H3K27me2 and -me3 being the most affected modifications. Notably, H3K27me2/3 loss in ∆ex4 cells occurred at histone peptides regardless of their H3K36 methylation status. Moreover, the global H3K36 methylation rates were not affected in either CSex4 or ∆ex4 cells (Figure S4C), and no major changes in methylation or acetylation levels were observed at other residues. Importantly, reintroduction of SUZ12-L in KO cells rescued a higher degree of methylation compared to SUZ12-S. Overall, these results indicate that SUZ12-S alone is unable to maintain global physiological levels of H3K27 methylation; rather SUZ12-L is also necessary for this task.

2024-03-18 | PXD046640 | Pride

Chip-chip from HepG2 cells with EZH2, SUZ12 and H3K27me3

2013-11-13 | GSE52300 | GEO

H3K27me3 is maintained at a reduced level in Suz12(Bgal/Bgal) ESCs [RNA-Seq]

2013-07-22 | GSE47484 | GEO

H3K27me3 is maintained at a reduced level in Suz12(Bgal/Bgal) ESCs [ChIP-Seq]

2013-07-22 | GSE47483 | GEO

H3K27me3 is maintained at a reduced level in Suz12(Bgal/Bgal) ESCs [ChIP-Seq]

Project description:Suz12(Bgal/Bgal) ESCs express a truncated form of Suz12 fused to Beta-galactosidase. These cells maintain a reduced level of H3K27me3 despite this mutation to a core component of PRC2, unlike Eed-/- ESCs whose H3K27me3 is ablated. Two ESC lines mutant in genes of core components of Polycomb Repressive Complex 2 were assessed for H3K27me3 by ChIP-seq, as compared to a wild type ESC line.

2013-07-22 | E-GEOD-47483 | biostudies-arrayexpress

H3K27me3, H3K79me2, and Suz12 ChIP-Seq in Human Embryonic Stem Cells (BG03).

Project description:H3K27me3 is a chromatin modification depositied by Suz12, a component of the Polycomb Group 2 complex, and is associated with transcriptional repression. In contrast, H3K79me2 is a chromatin modification associated with active gene transcription. It is deposited by the histone methyltransferase Dot1L and generally is localized just downstream of the transcriptional start site and extends down the body of the gene. To gain insight into the transcriptional state of genes in hES cells, chromatin immunoprecipitation coupled with massive parallel sequencing (ChIP-seq) was performed to determine the genome-wide occupancy of the H3K27me3 and H3K79me2 chromatin modifications and genome-wide occupancy of the Suz12. DNA was enriched by chromatin immunoprecipitation (ChIP) and analyzed by Solexa sequencing A sample of whole cell extract was sequenced and used as the background to determine enrichment. ChIP was performed using an antibody against H3K27me3, H3K79me2, and Suz12 (Abcam).

2010-10-01 | E-GEOD-24463 | biostudies-arrayexpress

H3K27me3, H3K79me2, and Suz12 ChIP-Seq in Human Embryonic Stem Cells (BG03).

2010-10-01 | GSE24463 | GEO

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