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The E3 ubiquitin ligase activity of RING1B is not essential for early mouse development.

TitleThe E3 ubiquitin ligase activity of RING1B is not essential for early mouse development.
Publication TypeJournal Article
Year of Publication2015
AuthorsIllingworth R, Moffat M, Mann AR, Read D, Hunter CJ, Pradeepa MM, Adams IR, Bickmore WA
JournalGenes Dev
Volume29
Issue18
Pagination1897-902
Date Published2015 Sep 15
ISSN1549-5477
KeywordsAnimals, Embryo, Mammalian, Gene Expression Regulation, Developmental, Histones, Mice, Mice, Inbred C57BL, Mouse Embryonic Stem Cells, Mutation, Polycomb Repressive Complex 1, Polycomb Repressive Complex 2, Protein Binding, Ubiquitin-Protein Ligases, Ubiquitination
Abstract

Polycomb-repressive complex 1 (PRC1) and PRC2 maintain repression at many developmental genes in mouse embryonic stem cells and are required for early development. However, it is still unclear how they are targeted and how they function. We show that the ability of RING1B, a core component of PRC1, to ubiquitinate histone H2A is dispensable for early mouse embryonic development and much of the gene repression activity of PRC1. Our data support a model in which PRC1 and PRC2 reinforce each other's binding but suggest that the key functions of PRC1 lie beyond the enzymatic capabilities of RING1B.

DOI10.1101/gad.268151.115
Alternate JournalGenes Dev.
PubMed ID26385961
PubMed Central IDPMC4579347
Grant ListMC_PC_U127527202 / / Medical Research Council / United Kingdom
MC_PC_U127580973 / / Medical Research Council / United Kingdom
/ / Medical Research Council / United Kingdom
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