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GR HeLa ChIP-seq

ABSTRACT: GR HeLa ChIP-seq

PROVIDER: PRJEB4539 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR336972.fastq.gz	Fastqsanger.gz
	ERR336973.fastq.gz	Fastqsanger.gz
	ERR336974.fastq.gz	Fastqsanger.gz
	ERR336975.fastq.gz	Fastqsanger.gz
	ERR336976.fastq.gz	Fastqsanger.gz

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GR HeLa ChIP-seq

Project description:Chromatin immunoprecipitation using GR antibodies in HeLa cells detected by Illumina sequencing

2018-03-19 | E-MTAB-1851 | biostudies-arrayexpress

ChIP-MS for GR in liver from wild type and E47 mutant mice

Project description:Glucocorticoids (GCs) are widely prescribed effective drugs, but their clinical use is compromised by severe side effects including hyperglycemia, hyperlipidemia and obesity. They bind to the Glucocorticoid Receptor (GR), which acts as a ligand-gated transcription factor. The transcriptional activation of metabolic genes by GR is thought to underlie these undesired adverse effects. Using mouse genetics, ChIP-Seq, RNA-Seq and ChIP-MS, we found that the bHLH transcription factor E47 is required for the regulation of hepatic glucose and lipid metabolism by GR in vivo, and that loss of E47 prevents the development of hyperglycemia and hepatic steatosis in response to GCs. Here we show that E47 and GR co-occupy metabolic promoters and enhancers. E47 is needed for the efficient binding of GR to chromatin and for the adequate recruitment of coregulators such as Mediator. Taken together, our results illustrate how GR and E47 regulate hepatic metabolism, and how inhibition of E47 might provide an entry point for novel GC therapies with reduced side effect profiles. These ChIP-MS data sets show IPs for GR in both wildtype and E47 mutant mouse livers treated with the synthetic glucocorticoid Dexamethasone.

2018-11-22 | PXD010157 | Pride

ChIP-MS of GR and GR-DZn in mouse embryonic fibroblasts

Project description:The Glucocorticoid Receptor (GR) is both one of the most widely used clinical drug targets and a very potent metabolic regulator. GR belongs to the nuclear hormone receptor family of ligand-gated transcription factors that govern mammalian physiology. Upon ligand binding, GR enters the nucleus to regulate gene expression both positively and negatively. It is known to bind to consensus DNA sequences termed glucocorticoid response elements (GREs), but the mechanisms determining transcriptional activation versus repression remain an unresolved molecular paradox. Prevailing models suggest that tethering of GR to AP-1 or NF-κB via protein-protein interactions, rather than direct DNA binding, specifies negative regulation. However, here we show that the repression of inflammatory genes as well as all other glucocorticoid responses, require direct DNA binding of GR. Generating GR point mutant mice that retain the ability to tether via protein-protein interactions while unable to recognize DNA sequences, we demonstrate that response element recognition via the Zinc finger is absolutely required for both transcriptional activation and repression. We have used ChIP-Seq and RNA-Seq in inflammatory and metabolic cells and tissues together with proteomics to reveal that DNA binding of GR is necessary for the assembly of a functional SWI/SNF coregulator complex. Generally, the desired anti-inflammatory actions of GR are attributed to the silencing of inflammatory genes, while its adverse effects are believed to result from the transcriptional upregulation of metabolic targets. Our findings not only challenge classical models and dogmas of GR mediated gene regulation, but will provide an important basis for the development of novel immunosuppressants with reduced side effect profiles.

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GR cistromes reprogramming by High Fat Diet [ChIP-seq: GR DEX]

Project description:GR cistromes reprogramming by High Fat Diet [ChIP-seq: GR DEX]

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GR cistromes reprogramming by High Fat Diet [ChIP-seq: GR day/night]

Project description:GR cistromes reprogramming by High Fat Diet [ChIP-seq: GR day/night]

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TFAM ChIP-seq in HeLa cells

Project description:ChIP-seq data characterizing the occupancy of TFAM over the mitochondrial and nuclear genomes in HeLa cells. Characterization of mitochondrial and nuclear genome-wide TFAM binding in HeLa cells

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Co-activation of GR and NF-kB leads to extensive rearrangemnet of their binding sites and target genes

Project description:Global identification of activated GR and p65 binding sites and target genes using ChIP-seq in HeLa B2 cells.

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GR cistromes reprogramming by High Fat Diet [ChIP-seq: GR DEX]

Project description:We mapped the genome-wide binding profiles of GR by using ChIP-Seq in livers from mice fed control or HFD diet after acute exogenous ligand (DEX) administration.

2019-10-22 | GSE137978 | GEO

Co-activation of GR and NF-kB leads to extensive rearrangemnet of their binding sites and target genes

Project description:Global identification of activated GR and p65 binding sites and target genes using ChIP-seq in HeLa B2 cells. generation genome-wide chromatin state-maps of GR, p65 and RNAPII in HeLa B2 cells under conditions 1) DMSO (control); 2) TA 1M-BM-5M 4hr; 3) TNFM-NM-1 10ng/ml ; 4) TA 1M-BM-5M 4hr at at third hour 10ng/ml TNF M-NM-1 was added

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Project description:We performed ChIP-seq targeting the glucocorticoid receptor (GR) in the U2OS-GR cell line. The cell line is derived from U2OS ATTC:HTB-96 and stably transfected with an expression construct for rat GR. The cells were treated with 100 nM dexamethasone for 4 hours, washed 2x with PBS and cultured in hormone-free medium for 24 hours before harvest.

2021-05-03 | E-MTAB-9914 | biostudies-arrayexpress

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