| Literature DB >> 24837194 |
Reinhard Kalb1, Sebastian Latwiel2, H Irem Baymaz3, Pascal W T C Jansen4, Christoph W Müller5, Michiel Vermeulen4, Jürg Müller1.
Abstract
A key step in gene repression by Polycomb is trimethylation of histone H3 K27 by PCR2 to form H3K27me3. H3K27me3 provides a binding surface for PRC1. We show that monoubiquitination of histone H2A by PRC1-type complexes to form H2Aub creates a binding site for Jarid2-Aebp2-containing PRC2 and promotes H3K27 trimethylation on H2Aub nucleosomes. Jarid2, Aebp2 and H2Aub thus constitute components of a positive feedback loop establishing H3K27me3 chromatin domains.Entities:
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Year: 2014 PMID: 24837194 DOI: 10.1038/nsmb.2833
Source DB: PubMed Journal: Nat Struct Mol Biol ISSN: 1545-9985 Impact factor: 15.369