A second DNA binding site in human BRCA2 promotes homologous recombination.
A second DNA binding site in human BRCA2 promotes homologous recombination.
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DOI:
10.1038/ncomms12813
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发表时间:
2016-09-15
影响因子:
16.6
通讯作者:
Carreira, Aura
中科院分区:
文献类型:
--
作者:
von Nicolai, Catharina;Ehlen, Asa;Martin, Charlotte;Zhang, Xiaodong;Carreira, Aura
BRCA2 tumour-suppressor protein is well known for its role in DNA repair by homologous recombination (HR); assisting the loading of RAD51 recombinase at DNA double-strand breaks. This function is executed by the C-terminal DNA binding domain (CTD) which binds single-stranded (ss)DNA, and the BRC repeats, which bind RAD51 and modulate its assembly onto ssDNA. Paradoxically, analysis of cells resistant to DNA damaging agents missing the CTD restore HR proficiency, suggesting another domain may take over its function. Here, we identify a region in the N terminus of BRCA2 that exhibits DNA binding activity (NTD) and provide evidence for NTD promoting RAD51-mediated HR. A missense variant detected in breast cancer patients located in the NTD impairs HR stimulation on dsDNA/ssDNA junction containing substrates. These findings shed light on the function of the N terminus of BRCA2 and have implications for the evaluation of breast cancer variants. BRCA2 is a well-characterized central player in homologous recombination in which it functions as the RAD51 loader. Here the authors identify an N-terminal region of BRCA2 that binds DNA and promotes efficient DNA repair.
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影响因子:
16
作者:
Zhao W;Vaithiyalingam S;San Filippo J;Maranon DG;Jimenez-Sainz J;Fontenay GV;Kwon Y;Leung SG;Lu L;Jensen RB;Chazin WJ;Wiese C;Sung P
通讯作者:
Sung P
影响因子:
64.8
作者:
Yang, HJ;Li, QB;Pavletich, NP
通讯作者:
Pavletich, NP
DOI:
10.1074/jbc.m601249200
发表时间:
2006-04-28
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
San Filippo J;Chi P;Sehorn MG;Etchin J;Krejci L;Sung P
通讯作者:
Sung P
影响因子:
16.8
作者:
Liu, Jie;Doty, Tammy;Heyer, Wolf-Dietrich
通讯作者:
Heyer, Wolf-Dietrich
影响因子:
64.5
作者:
Carreira A;Hilario J;Amitani I;Baskin RJ;Shivji MK;Venkitaraman AR;Kowalczykowski SC
通讯作者:
Kowalczykowski SC