Molecular basis for the inhibition of the methyl-lysine binding function of 53BP1 by TIRR.
Molecular basis for the inhibition of the methyl-lysine binding function of 53BP1 by TIRR.
复制标题
TIRR抑制53BP1甲基赖氨酸结合功能的分子基础
DOI:
10.1038/s41467-018-05174-9
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发表时间:
2018-07-12
影响因子:
16.6
通讯作者:
Liu X
中科院分区:
文献类型:
--
作者:
Wang J;Yuan Z;Cui Y;Xie R;Yang G;Kassab MA;Wang M;Ma Y;Wu C;Yu X;Liu X
53BP1 performs essential functions in DNA double-strand break (DSB) repair and it was recently reported that Tudor interacting repair regulator (TIRR) negatively regulates 53BP1 during DSB repair. Here, we present the crystal structure of the 53BP1 tandem Tudor domain (TTD) in complex with TIRR. Our results show that three loops from TIRR interact with 53BP1 TTD and mask the methylated lysine-binding pocket in TTD. Thus, TIRR competes with histone H4K20 methylation for 53BP1 binding. We map key interaction residues in 53BP1 TTD and TIRR, whose mutation abolishes complex formation. Moreover, TIRR suppresses the relocation of 53BP1 to DNA lesions and 53BP1-dependent DNA damage repair. Finally, despite the high-sequence homology between TIRR and NUDT16, NUDT16 does not directly interact with 53BP1 due to the absence of key residues required for binding. Taken together, our study provides insights into the molecular mechanism underlying TIRR-mediated suppression of 53BP1-dependent DNA damage repair.
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影响因子:
5.7
作者:
Tong, Qiong;Cui, Gaofeng;Botuyan, Maria Victoria;Rothbart, Scott B.;Hayashi, Ryo;Musselman, Catherine A.;Singh, Namit;Appella, Ettore;Strahl, Brian D.;Mer, Georges;Kutateladze, Tatiana G.
通讯作者:
Kutateladze, Tatiana G.
DOI:
10.1073/pnas.1403737111
发表时间:
2014-08-05
影响因子:
11.1
作者:
Carr, Simon M.;Munro, Shonagh;La Thangue, Nicholas B.
通讯作者:
La Thangue, Nicholas B.
影响因子:
11.4
作者:
Mallette, Frederick A.;Mattiroli, Francesca;Richard, Stephane
通讯作者:
Richard, Stephane
影响因子:
3.7
作者:
Trésaugues L;Lundbäck T;Welin M;Flodin S;Nyman T;Silvander C;Gräslund S;Nordlund P
通讯作者:
Nordlund P
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH