Proteomics

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MTA proteins act redundantly within the NuRD complex to ensure fidelity of ES cell lineage commitment


ABSTRACT: Multiprotein chromatin remodelling complexes show remarkable conservation of function amongst metazoans, even though each component present in invertebrates are often present as multiple paralogous proteins in vertebrate complexes. In some cases these paralogues have been shown to specify distinct biochemical and/or functional activities in vertebrate cells. Here we set out to define the biochemical and functional diversity encoded by one such group of proteins within the mammalian Nucleosome Remodelling and Deaceylation (NuRD) complex: Mta1, Mta2 and Mta3. We find that, in contrast to what has been described in somatic cells, MTA proteins are not mutually exclusive within ES cell NuRD and, despite subtle differences in chromatin binding and biochemical interactions, serve largely redundant functions. Nevertheless, ES cells lacking all three MTA proteins represent a complete NuRD null and are viable, allowing us to identify a previously undetected function for NuRD in maintaining differentiation trajectory during early stages of lineage commitment.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Cell Culture, Embryonic Stem Cell

DISEASE(S): Disease Free

SUBMITTER: Susan Kloet  

LAB HEAD: Michiel Vermeulen

PROVIDER: PXD009855 | Pride | 2019-03-26

REPOSITORIES: Pride

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