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| Status |
Public on Oct 07, 2011 |
| Title |
Methylation specifies distinct estrogen-induced binding site repertoires of CBP to chromatin (ChIP-Seq) |
| Organism |
Homo sapiens |
| Experiment type |
Genome binding/occupancy profiling by high throughput sequencing
|
| Summary |
Multiple signaling pathways ultimately modulate the epigenetic information embedded in the chromatin of gene promoters by recruiting epigenetic enzymes. We found that, in estrogen-regulated gene programming, the acetyltransferase CREB-binding protein (CBP) is specifically and exclusively methylated by the coactivator-associated arginine methyltransferase (CARM1) in vivo. CARM1-dependent CBP methylation and p160 coactivators were required for estrogen-induced recruitment to chromatin targets. Notably, methylation increased the histone acetyltransferase (HAT) activity of CBP and stimulated its autoacetylation. Comparative genome-wide chromatin immunoprecipitation sequencing (ChIP-seq) studies revealed a variety of patterns by which p160, CBP, and methyl-CBP (meCBP) are recruited (or not) by estrogen to chromatin targets. Moreover, significant target gene-specific variation in the recruitment of (1) the p160 RAC3 protein, (2) the fraction of a given meCBP species within the total CBP, and (3) the relative recruitment of different meCBP species suggests the existence of a target gene-specific âfingerprintâ for coregulator recruitment. Crossing ChIP-seq and transcriptomics profiles revealed the existence of meCBP âhubsâ within the network of estrogen-regulated genes. Together, our data provide evidence for an unprecedented mechanism by which CARM1-dependent CBP methylation results in gene-selective association of estrogen-recruited meCBP species with different HAT activities and specifies distinct target gene hubs, thus diversifying estrogen receptor programming.
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| Overall design |
Examination of estrogen-induced binding site in H3396 cells under Estrogen (E2) or Ethanol (EtOH) treatment: CBP in E2; CBP in EtOH (two technical replicate); CBPR742m in E2 (two technical replicates); CBPR768m in E2; CBPR768m in EtOH; CBPR2151m in E2; CBPR2151m in EtOH; Estrogen receptor alpha (ERa) in E2; ERa in EtOH; Total Histone 3 and 4 acetylated in E2; H3K18ac in E2; H3K18ac in EtOH; Polymerase II (PolII) in E2; PolII in EtOH; RAC3 in E2; Input DNA sample in E2
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| Contributor(s) |
Ceschin DG, Walia M, Wenk SS, Duboé C, Gaudon C, Xiao Y, Fauquier L, Sankar M, Vandel L, Gronemeyer H |
| Citation(s) |
21632823 |
| Submission date |
Sep 23, 2011 |
| Last update date |
May 15, 2019 |
| Contact name |
Marco Antonio Mendoza-Parra |
| E-mail(s) |
marco@igbmc.fr
|
| Organization name |
IGBMC
|
| Street address |
1, rue Laurent Fries
|
| City |
Illkirch; Strasbourg |
| ZIP/Postal code |
67400 |
| Country |
France |
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| Platforms (1) |
| GPL9052 |
Illumina Genome Analyzer (Homo sapiens) |
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| Samples (18)
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| This SubSeries is part of SuperSeries: |
| GSE32350 |
Methylation specifies distinct estrogen-induced binding site repertoires of CBP to chromatin |
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| Relations |
| SRA |
SRP008778 |
| BioProject |
PRJNA154905 |
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