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Τρίτη 28 Αυγούστου 2018

Mre11 complex links sister chromatids to promote repair of a collapsed replication fork [Cell Biology]

Collapsed replication forks, which are a major source of DNA double-strand breaks (DSBs), are repaired by sister chromatid recombination (SCR). The Mre11–Rad50–Nbs1 (MRN) protein complex, assisted by CtIP/Sae2/Ctp1, initiates SCR by nucleolytically resecting the single-ended DSB (seDSB) at the collapsed fork. The molecular architecture of the MRN intercomplex, in which...

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