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DNA-PKcs PARylation regulates DNA-PK kinase activity in the DNA damage response

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成果类型:
期刊论文
作者:
Han, Yang;Jin, Feng;Xie, Ying;Liu, Yike;Hu, Sai;...
通讯作者:
Zhou, Ping-Kun;Ma, Teng
作者机构:
[Hu, Sai; Han, Yang] Univ South China, Sch Publ Hlth, Inst Environm Med & Radiat Hyg, Hengyang 421001, Hunan, Peoples R China.
[Jin, Feng; Liu, Yike; Guan, Hua; Ma, Teng; Xie, Ying; Hu, Sai; Han, Yang; Gu, Yongqing; Liu, Xiao-Dan; Zhou, Ping-Kun] Beijing Inst Radiat Med, Dept Radiat Biol, Beijing Key Lab Radiobiol, 27 Taiping Rd, Beijing 100850, Peoples R China.
[Liu, Yike; Zhou, Ping-Kun] Guangzhou Med Univ, State Key Lab Resp Dis, Inst Chem Carcinogenesis, Guangzhou 511436, Guangdong, Peoples R China.
[Ma, Teng] Capital Med Univ, Beijing Chest Hosp, Dept Cellular & Mol Biol, Beijing TB & Thorac Tumor Res Inst, 2 Res Bldg,97 Machang, Beijing 101149, Peoples R China.
通讯机构:
[Zhou, Ping-Kun] B
[Ma, Teng] C
Beijing Inst Radiat Med, Dept Radiat Biol, Beijing Key Lab Radiobiol, 27 Taiping Rd, Beijing 100850, Peoples R China.
Capital Med Univ, Beijing Chest Hosp, Dept Cellular & Mol Biol, Beijing TB & Thorac Tumor Res Inst, 2 Res Bldg,97 Machang, Beijing 101149, Peoples R China.
语种:
英文
关键词:
parylation;double strand break repair;non-homologous end joining repair;autophosphorylation
期刊:
MOLECULAR MEDICINE REPORTS
ISSN:
1791-2997
年:
2019
卷:
20
期:
4
页码:
3609-3616
基金类别:
National Key Basic Research Program (973 Program) of MOST, China [2015CB910601]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81530085, 31570853, 81602799, 31870847]
机构署名:
本校为第一机构
院系归属:
公共卫生学院
摘要:
DNA-dependent protein kinase catalytic subunit (-PKcs) is the core protein involved in the non-homologous end-joining repair of double-strand breaks. In addition, it can form a complex with poly(ADP-ribose) polymerase 1 (PARP1), which catalyzes protein PARylation. However, it is unclear how DNA-PKcs interacts with PARP1 in the DNA damage response and how PARylation affects DNA-PK kinase activity. Using immunoprecipitation, immunofluorescence and flow cytometry the present study found that DNA-PKcs was PARylated after DNA damage, and the PARP1/2 inhibitor olaparib completely abolished DNA-PKcs ...

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