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NuRD-ZNF827 recruitment to telomeres creates a molecular scaffold for homologous recombination.
Nat Struct Mol Biol. 2014 Sep;21(9):760-70. doi: 10.1038/nsmb.2877
Conomos D, Reddel RR, Pickett HA
Abstract:
.....Nuclear receptors are bound to the telomeres of cells that use ALT. Here we demonstrate that nuclear receptors recruit ZNF827, a zinc-finger protein of unknown function, which recruits the nucleosome remodeling and histone deacetylation (NuRD) complex via binding to an N-terminal RRK motif within ZNF827. This results in decreased shelterin binding, hypoacetylation of telomeric chromatin, enhanced telomere-telomere interactions and recruitment of HR proteins, and it is critically important for cell viability and proliferation. We propose that NuRD-ZNF827 recruitment to human telomeres causes remodeling of telomeric chromatin and creates an environment that promotes telomere-telomere recombination and integrates and controls multiple mechanistic elements of ALT activity.
PMID: 25150861
Tags: ALT