2014
DOI: 10.1038/nsmb.2833
|View full text |Cite
|
Sign up to set email alerts
|

Histone H2A monoubiquitination promotes histone H3 methylation in Polycomb repression

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.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1
1

Citation Types

24
396
1
1

Year Published

2015
2015
2023
2023

Publication Types

Select...
7
3

Relationship

0
10

Authors

Journals

citations
Cited by 385 publications
(422 citation statements)
references
References 23 publications
24
396
1
1
Order By: Relevance
“…EMSA were performed with equal volumes (0.5, 1, 2 and 3 μl) of the eluates using the 12mer-CpG sequence. For HMTase assay, mononucleosomes were incubated with 15 μl of the eluates for 2 hours at 25 °C using the following reaction buffer: 10 mM HEPES pH 7.4, 50 mM NaCl, 10 μM ZnCl 2 , 0.5 mM DTT, 2.5 mM MgCl 2 , 2 mM ATP, 5% Glycerol, 80 μM SAM 35 . The reaction products were analyzed by Western blotting.…”
Section: Methodsmentioning
confidence: 99%
“…EMSA were performed with equal volumes (0.5, 1, 2 and 3 μl) of the eluates using the 12mer-CpG sequence. For HMTase assay, mononucleosomes were incubated with 15 μl of the eluates for 2 hours at 25 °C using the following reaction buffer: 10 mM HEPES pH 7.4, 50 mM NaCl, 10 μM ZnCl 2 , 0.5 mM DTT, 2.5 mM MgCl 2 , 2 mM ATP, 5% Glycerol, 80 μM SAM 35 . The reaction products were analyzed by Western blotting.…”
Section: Methodsmentioning
confidence: 99%
“…For an outline of the experimental design, see Supplemental Figure S7C. may require recruitment of enzyme cofactors (Alabert et al 2014;Kalb et al 2014). Such a tight regulation of PTM establishment could limit unwarranted silencing, which is jeopardized in cancers carrying EZH2-activating mutations (McCabe et al 2012).…”
Section: Cell Cycle Withdrawal Impacts Histone Ptm Levelsmentioning
confidence: 99%
“…Des expériences de chromatographie d'affinité (ou pull down 3 ), réalisées sur des extraits nucléaires d'embryons de drosophile ou de cellules ES murines, ont révélé que les composants de PRC2 étaient, respectivement, fortement associés avec l'H2AK118ub et l'H2AK119ub. L'H2A ubiquitinée servirait donc de site de liaison pour le complexe PRC2, ce qui entraînerait la triméthylation de l'H3K27 [21]. Les deux phénomènes se produisent donc ici dans l'ordre inverse de celui qui était prédit par le modèle précédent.…”
Section: Synthèse Revuesunclassified