Scaffolding protein SPIDR/KIAA0146 connects the Bloom syndrome helicase with homologous recombination repair
Scaffolding protein SPIDR/KIAA0146 connects the Bloom syndrome helicase with homologous recombination repair
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支架蛋白 SPIDR/KIAA0146 将布卢姆综合征解旋酶与同源重组修复连接起来
DOI:
10.1073/pnas.1220921110
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发表时间:
2013-03
影响因子:
11.1
通讯作者:
Huang, Jun
中科院分区:
文献类型:
--
作者:
Dong, Shunli;Xie, Feng;Chen, Hongxia;Huang, Jun
The Bloom syndrome gene product, BLM, is a member of the highly conserved RecQ family. An emerging concept is the BLM helicase collaborates with the homologous recombination (HR) machinery to help avoid undesirable HR events and to achieve a high degree of fidelity during the HR reaction. However, exactly how such coordination occurs in vivo is poorly understood. Here, we identified a protein termed SPIDR (scaffolding protein involved in DNA repair) as the link between BLM and the HR machinery. SPIDR independently interacts with BLM and RAD51 and promotes the formation of a BLM/RAD51-containing complex of biological importance. Consistent with its role as a scaffolding protein for the assembly of BLM and RAD51 foci, cells depleted of SPIDR show increased rate of sister chromatid exchange and defects in HR. Moreover, SPIDR depletion leads to genome instability and causes hypersensitivity to DNA damaging agents. We propose that, through providing a scaffold for the cooperation of BLM and RAD51 in a multifunctional DNA-processing complex, SPIDR not only regulates the efficiency of HR, but also dictates the specific HR pathway.
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影响因子:
64.8
作者:
通讯作者:
--
影响因子:
10.5
作者:
Yi Wang;D. Cortez;P. Yazdi;N. Neff;S. Elledge;J. Qin
通讯作者:
Yi Wang;D. Cortez;P. Yazdi;N. Neff;S. Elledge;J. Qin
影响因子:
10.5
作者:
Bugreev, Dmitry V.;Yu, Xiong;Mazin, Alexander V.
通讯作者:
Mazin, Alexander V.
影响因子:
11.4
作者:
Tutt, A;Bertwistle, D;Ashworth, A
通讯作者:
Ashworth, A
影响因子:
10.5
作者:
Nimonkar, Amitabh V.;Genschel, Jochen;Kowalczykowski, Stephen C.
通讯作者:
Kowalczykowski, Stephen C.