PARP1 and CHK1 coordinate PLK1 enzymatic activity during the DNA damage response to promote homologous recombination-mediated repair.
PARP1 and CHK1 coordinate PLK1 enzymatic activity during the DNA damage response to promote homologous recombination-mediated repair.
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PARP1 和 CHK1 在 DNA 损伤反应过程中协调 PLK1 酶活性,促进同源重组介导的修复。
DOI:
10.1093/nar/gkab584
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发表时间:
2021-07-21
影响因子:
14.9
通讯作者:
Xu X
中科院分区:
文献类型:
--
作者:
Peng B;Shi R;Bian J;Li Y;Wang P;Wang H;Liao J;Zhu WG;Xu X
Polo-like kinase 1 (PLK1) is a master kinase that regulates cell cycle progression. How its enzymatic activity is regulated in response to DNA damage is not fully understood. We show that PLK1 is enriched at double strand breaks (DSBs) within seconds of UV laser irradiation in a PARP-1-dependent manner and then disperses within 10 min in a PARG-dependent manner. Poly(ADP-)ribose (PAR) chains directly bind to PLK1 in vitro and inhibit its enzymatic activity. CHK1-mediated PLK1 phosphorylation at S137 prevents its binding to PAR and recruitment to DSBs but ensures PLK1 phosphorylation at T210 and its enzymatic activity toward RAD51 at S14. This subsequent phosphorylation event at S14 primes RAD51 for CHK1-mediated phosphorylation at T309, which is essential for full RAD51 activation. This CHK1–PLK1–RAD51 axis ultimately promotes homologous recombination (HR)-mediated repair and ensures chromosome stability and cellular radiosensitivity. These findings provide biological insight for combined cancer therapy using inhibitors of PARG and CHK1.
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影响因子:
8
作者:
Krystyniak, A;Garcia-Echeverria, C;Ferrari, S
通讯作者:
Ferrari, S
影响因子:
--
作者:
Aguilar-Quesada R;Muñoz-Gámez JA;Martín-Oliva D;Peralta A;Valenzuela MT;Matínez-Romero R;Quiles-Pérez R;Menissier-de Murcia J;de Murcia G;Ruiz de Almodóvar M;Oliver FJ
通讯作者:
Oliver FJ
DOI:
10.1083/jcb.201401146
发表时间:
2014-09-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Barton O;Naumann SC;Diemer-Biehs R;Künzel J;Steinlage M;Conrad S;Makharashvili N;Wang J;Feng L;Lopez BS;Paull TT;Chen J;Jeggo PA;Löbrich M
通讯作者:
Löbrich M
影响因子:
4.3
作者:
Fathers, Catherine;Drayton, Ross M.;Bryant, Helen E.
通讯作者:
Bryant, Helen E.
影响因子:
3.5
作者:
Hutchins, JRA;Hughes, M;Clarke, PR
通讯作者:
Clarke, PR