BRCA1 promotes unloading of the CMG helicase from a stalled DNA replication fork.
BRCA1 promotes unloading of the CMG helicase from a stalled DNA replication fork.
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DOI:
10.1016/j.molcel.2014.08.012
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发表时间:
2014-10-02
期刊:
影响因子:
16
通讯作者:
Walter, Johannes C.
中科院分区:
文献类型:
--
作者:
Long, David T.;Joukov, Vladimir;Budzowska, Magda;Walter, Johannes C.
The tumor suppressor protein BRCA1 promotes homologous recombination (HR), a high fidelity mechanism to repair DNA double-strand breaks (DSBs) that arise during normal replication and in response to DNA damaging agents. Recent genetic experiments indicate that BRCA1 also performs an HR-independent function during the repair of DNA interstrand crosslinks (ICLs). Here, we show that BRCA1 is required to unload the CMG helicase complex from chromatin after replication forks collide with an ICL. Eviction of the stalled helicase allows leading strands to be extended toward the ICL, followed by endonucleolytic processing of the crosslink, lesion bypass, and DSB repair. Our results identify BRCA1-dependent helicase unloading as a critical, early event in ICL repair.
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DOI:
10.1007/978-1-61779-998-3_15
发表时间:
2012
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Enoiu, Milica;Ho, The Vinh;Long, David T;Walter, Johannes C;Scharer, Orlando D
通讯作者:
Scharer, Orlando D
影响因子:
21.3
作者:
通讯作者:
--
影响因子:
4.8
作者:
Hashizume, R;Fukuda, M;Ohta, T
通讯作者:
Ohta, T
影响因子:
2.1
作者:
Fukui, T;Yamauchi, K;Waga, S
通讯作者:
Waga, S
影响因子:
4.8
作者:
Bhattacharyya, A;Ear, US;Bishop, DK
通讯作者:
Bishop, DK