PARP1 and PARP2 stabilise replication forks at base excision repair intermediates through Fbh1-dependent Rad51 regulation
PARP1 and PARP2 stabilise replication forks at base excision repair intermediates through Fbh1-dependent Rad51 regulation
复制标题
PARP1 和 PARP2 通过 Fbh1 依赖性 Rad51 调节稳定碱基切除修复中间体的复制叉
DOI:
10.1101/243071
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Ronson G
中科院分区:
文献类型:
--
作者:
Ronson G
PARP1 regulates the repair of DNA single-strand breaks generated directly, or during base excision repair (BER). However, the role of PARP2 in these and other repair mechanisms is unknown. Here, we report a requirement for PARP2 in stabilising replication forks that encounter BER intermediates through Fbh1-dependent regulation of Rad51. Whereas PARP2 is dispensable for tolerance of cells to SSBs or homologous recombination dysfunction, it is redundant with PARP1 in BER. Therefore, combined disruption of PARP1 and PARP2 leads to defective BER, resulting in elevated levels of replication-associated DNA damage owing to an inability to stabilise Rad51 at damaged replication forks and prevent uncontrolled DNA resection. Together, our results demonstrate how PARP1 and PARP2 regulate two independent, but intrinsically linked aspects of DNA base damage tolerance by promoting BER directly, and by stabilising replication forks that encounter BER intermediates.
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DOI:
10.1007/978-1-60327-418-0_17
发表时间:
2010-01-01
期刊:
DRUG-DNA INTERACTION PROTOCOLS, SECOND EDITION
影响因子:
--
作者:
Spanswick, Victoria J.;Hartley, Janet M.;Hartley, John A.
通讯作者:
Hartley, John A.
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:
50.3
作者:
Schlacher K;Wu H;Jasin M
通讯作者:
Jasin M
影响因子:
7.3
作者:
Huang, Fei;Mazina, Olga M.;Mazin, Alexander V.
通讯作者:
Mazin, Alexander V.
影响因子:
11.2
作者:
O'Connor, Lenka Oplustil;Rulten, Stuart L.;O'Connor, Mark J.
通讯作者:
O'Connor, Mark J.