DNA repair. PAXX, a paralog of XRCC4 and XLF, interacts with Ku to promote DNA double-strand break repair.
DNA repair. PAXX, a paralog of XRCC4 and XLF, interacts with Ku to promote DNA double-strand break repair.
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DOI:
10.1126/science.1261971
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发表时间:
2015-01-09
期刊:
影响因子:
--
通讯作者:
Jackson SP
中科院分区:
文献类型:
--
作者:
Ochi T;Blackford AN;Coates J;Jhujh S;Mehmood S;Tamura N;Travers J;Wu Q;Draviam VM;Robinson CV;Blundell TL;Jackson SP
XRCC4 and XLF are two structurally-related proteins that function in DNA double-strand break (DSB) repair. Here, we identify human PAXX (PAralog of XRCC4 and XLF; also called C9orf142) as a new XRCC4-superfamily member, and show that its crystal structure resembles that of XRCC4. PAXX interacts directly with the DSB-repair protein Ku and is recruited to DNA-damage sites in cells. Using RNA interference and CRISPR-Cas9 to generate PAXX−/− cells, we demonstrate that PAXX functions with XRCC4 and XLF to mediate DSB repair and cell survival in response to DSB-inducing agents. Finally, we reveal that PAXX promotes Ku-dependent DNA ligation in vitro, and assembly of core non-homologous end-joining (NHEJ) factors on damaged chromatin in cells. These findings identify PAXX as a new component of the NHEJ machinery.
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影响因子:
3.8
作者:
Williams, Gareth J.;Hammel, Michal;Radhakrishnan, Sarvan Kumar;Ramsden, Dale;Lees-Miller, Susan P.;Tainer, John A.
通讯作者:
Tainer, John A.
影响因子:
64.5
作者:
Hsu PD;Lander ES;Zhang F
通讯作者:
Zhang F
影响因子:
3.8
作者:
Ochi, Takashi;Wu, Qian;Blundell, Tom L.
通讯作者:
Blundell, Tom L.
DOI:
10.1038/nsb725
发表时间:
2001-12-01
期刊:
NATURE STRUCTURAL BIOLOGY
影响因子:
--
作者:
Sibanda, BL;Critchlow, SE;Pellegrini, L
通讯作者:
Pellegrini, L
影响因子:
64.5
作者:
Ahnesorg, P;Smith, P;Jackson, SP
通讯作者:
Jackson, SP