Localization of Smc5/6 to centromeres and telomeres requires heterochromatin and SUMO, respectively

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Localization of Smc5/6 to centromeres and telomeres requires heterochromatin and SUMO, respectively.

The Smc5/6 holocomplex executes key functions in genome maintenance that include ensuring the faithful segregation of chromosomes at mitosis and facilitating critical DNA repair pathways. Smc5/6 is essential for viability and therefore, dissecting its chromosome segregation and DNA repair roles has been challenging. We have identified distinct epigenetic and post-translational modifications tha...

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Constitutive heterochromatin is crucial for the integrity of chromosomes and genomic stability. Here, we show that the chromatin remodelling complex NoRC, known to silence a fraction of rRNA genes, also establishes a repressive heterochromatic structure at centromeres and telomeres, preserving the structural integrity of these repetitive loci. Knockdown of NoRC leads to relaxation of centromeri...

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ژورنال

عنوان ژورنال: The EMBO Journal

سال: 2008

ISSN: 0261-4189,1460-2075

DOI: 10.1038/emboj.2008.220