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Lange, U.C.* ; Siebert, S.* ; Wossidlo, M.* ; Weiss, T.* ; Ziegler-Birling, C.* ; Walter, J.* ; Torres-Padilla, M.E.* ; Daujat, S.* ; Schneider, R.*

Dissecting the role of H3K64me3 in mouse pericentromeric heterochromatin.

Nat. Commun. 4:2233 (2013)
DOI PMC
Open Access Gold as soon as Publ. Version/Full Text is submitted to ZB.
To ensure genome stability, pericentromeric regions are compacted in a dense heterochromatic structure through a combination of specific 'epigenetic' factors and modifications. A cascadal pathway is responsible for establishing pericentromeric chromatin involving chromatin modifiers and 'readers', such as H3K9 histone methyltransferases (Suv)39h and heterochromatin protein 1. Here we define how H3K64me3 on the lateral surface of the histone octamer integrates within the heterochromatinization cascade. Our data suggest that enrichment of H3K64me3 at pericentromeric chromatin foci is dependent on H3K9me3 but independent of a number of central factors such as heterochromatin protein 1, DNA methyltransferases and Suv4-20h histone methyltransferases. Our results support a model in which pericentromeric heterochromatin foci are formed along distinct pathways upon H3K9 trimethylation, involving H3K64me3 to potentially stabilize DNA-histone interactions, as well as sequential recruitment of repressive histone tail and DNA modifications. We hence suggest that multiple mechanisms ensure heterochromatin integrity at pericentromeres, with H3K64me3 as an important factor.
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Publication type Article: Journal article
Document type Scientific Article
Language english
Publication Year 2013
HGF-reported in Year 2013
ISSN (print) / ISBN 2041-1723
e-ISSN 2041-1723
Quellenangaben Volume: 4, Issue: , Pages: , Article Number: 2233 Supplement: ,
Publisher Nature Publishing Group
Publishing Place London
Reviewing status Peer reviewed
POF-Topic(s) 30204 - Cell Programming and Repair
30203 - Molecular Targets and Therapies
Research field(s) Stem Cell and Neuroscience
Helmholtz Diabetes Center
PSP Element(s) G-506200-001
G-502800-001
PubMed ID 23903902
Erfassungsdatum 2013-12-31