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Pold3 and mitosis

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https://www.readbyqxmd.com/read/27984745/rad52-facilitates-mitotic-dna-synthesis-following-replication-stress
#1
Rahul Bhowmick, Sheroy Minocherhomji, Ian D Hickson
Homologous recombination (HR) is necessary to counteract DNA replication stress. Common fragile site (CFS) loci are particularly sensitive to replication stress and undergo pathological rearrangements in tumors. At these loci, replication stress frequently activates DNA repair synthesis in mitosis. This mitotic DNA synthesis, termed MiDAS, requires the MUS81-EME1 endonuclease and a non-catalytic subunit of the Pol-delta complex, POLD3. Here, we examine the contribution of HR factors in promoting MiDAS in human cells...
December 15, 2016: Molecular Cell
https://www.readbyqxmd.com/read/26633632/replication-stress-activates-dna-repair-synthesis-in-mitosis
#2
Sheroy Minocherhomji, Songmin Ying, Victoria A Bjerregaard, Sara Bursomanno, Aiste Aleliunaite, Wei Wu, Hocine W Mankouri, Huahao Shen, Ying Liu, Ian D Hickson
Oncogene-induced DNA replication stress has been implicated as a driver of tumorigenesis. Many chromosomal rearrangements characteristic of human cancers originate from specific regions of the genome called common fragile sites (CFSs). CFSs are difficult-to-replicate loci that manifest as gaps or breaks on metaphase chromosomes (termed CFS 'expression'), particularly when cells have been exposed to replicative stress. The MUS81-EME1 structure-specific endonuclease promotes the appearance of chromosome gaps or breaks at CFSs following replicative stress...
December 10, 2015: Nature
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