|
| Status |
Public on Jun 01, 2013 |
| Title |
SAM domain polymerization links subnuclear clustering of PRC1 to silencing (Affymetrix) |
| Organism |
Mus musculus |
| Experiment type |
Expression profiling by array
|
| Summary |
Polycomb group (PcG) proteins mediate heritable but reversible silencing of developmental regulator genes by modifying their chromatin configuration. Accumulating evidence documents a role for PcG proteins in regulating higher order chromatin structures likely by their clustering, however, underlying mechanisms and its impact on transcriptional regulation remain obscure. In this study, we found that subnuclear clustering of PRC1 at canonical PcG target genes depended on head-to-tail polymerization property of SAM domain of Phc2 and likely Phc1. We show that Phc2-SAM polymerization limits the dynamic nature of PRC1, thereby promotes stable association of PRC1 with PcG target genes and contributes to their robust silencing. Our findings suggest a novel model by which SAM polymerization of Phc2 modulates the structural organization of PcG complexes to enable robust yet reversible PcG-mediated repression during development.
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| Overall design |
Wild type and Phc2L307R/L307R MEFs were used for RNA extraction and hybridization on Affymetrix microarrays.
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| Contributor(s) |
Suzuki R, Endo TA |
| Citation(s) |
24091011 |
| |
| Submission date |
Apr 17, 2012 |
| Last update date |
Feb 11, 2019 |
| Contact name |
Takaho A. Endo |
| E-mail(s) |
[email protected]
|
| Organization name |
RIKEN
|
| Department |
IMS
|
| Lab |
Laboratory for Integrative Genomics
|
| Street address |
1-7-22 Suehiro, Tsurumi
|
| City |
Yokohama |
| State/province |
Kanagawa |
| ZIP/Postal code |
230-0045 |
| Country |
Japan |
| |
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| Platforms (1) |
| GPL1261 |
[Mouse430_2] Affymetrix Mouse Genome 430 2.0 Array |
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| Samples (2) |
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| This SubSeries is part of SuperSeries: |
| GSE38154 |
SAM domain polymerization links subnuclear clustering of PRC1 to silencing detected using expression data and ChIP experiments |
|
| Relations |
| BioProject |
PRJNA167300 |
