Coordinated regulation of transcriptional repression by the RBP2 H3K4 demethylase and Polycomb-Repressive Complex 2.
Genes Dev
; 22(10): 1345-55, 2008 May 15.
Article
en En
| MEDLINE
| ID: mdl-18483221
ABSTRACT
Polycomb group (PcG) proteins regulate important cellular processes such as embryogenesis, cell proliferation, and stem cell self-renewal through the transcriptional repression of genes determining cell fate decisions. The Polycomb-Repressive Complex 2 (PRC2) is highly conserved during evolution, and its intrinsic histone H3 Lys 27 (K27) trimethylation (me3) activity is essential for PcG-mediated transcriptional repression. Here, we show a functional interplay between the PRC2 complex and the H3K4me3 demethylase Rbp2 (Jarid1a) in mouse embryonic stem (ES) cells. By genome-wide location analysis we found that Rbp2 is associated with a large number of PcG target genes in mouse ES cells. We show that the PRC2 complex recruits Rbp2 to its target genes, and that this interaction is required for PRC2-mediated repressive activity during ES cell differentiation. Taken together, these results demonstrate an elegant mechanism for repression of developmental genes by the coordinated regulation of epigenetic marks involved in repression and activation of transcription.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Oxidorreductasas N-Desmetilantes
/
Proteínas Represoras
/
Regulación del Desarrollo de la Expresión Génica
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Células Madre Embrionarias
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Genes Dev
Asunto de la revista:
BIOLOGIA MOLECULAR
Año:
2008
Tipo del documento:
Article
País de afiliación:
Dinamarca