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Title: SAM domain polymerization links subnuclear clustering of PRC1 to silencing      
availability:
available
aggregation:
instance of dataset
privacy:
not applicable
refinement:
curated
dateReleased:
06-21-2013
ID:
E-GEOD-37530
description:
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. Examination of H3K27me3 in wild type and the Phc2 mutant cells
keywords:
ChIP-seq
format:
HTML
storedIn:
Array Express
qualifier:
not compressed
accessType:
landing page
authorization:
none
authentication:
none
primary:
true
accessURL: https://www.ebi.ac.uk/arrayexpress/experiments/E-GEOD-37530
format:
JSON
storedIn:
OmicsDI
qualifier:
not compressed
accessType:
download
authorization:
none
authentication:
none
primary:
false
accessURL: www.omicsdi.org/ws/dataset/arrayexpress-repository/E-GEOD-37530.json
format:
XML
storedIn:
OmicsDI
qualifier:
not compressed
accessType:
download
authorization:
none
authentication:
none
primary:
false
accessURL: http://www.omicsdi.org/ws/dataset/arrayexpress-repository/E-GEOD-37530.xml
ID:
SCR:014747
name:
Omics Discovery Index
abbreviation:
OmicsDI
homePage: http://www.omicsdi.org/