Structural insight into p53 recognition by the 53BP1 tandem Tudor domain.
Structural insight into p53 recognition by the 53BP1 tandem Tudor domain.
复制标题
DOI:
10.1016/j.jmb.2010.03.024
复制
发表时间:
2010-05-14
影响因子:
5.6
通讯作者:
Kutateladze TG
中科院分区:
文献类型:
--
作者:
Roy S;Musselman CA;Kachirskaia I;Hayashi R;Glass KC;Nix JC;Gozani O;Appella E;Kutateladze TG
The tumor suppressor p53 and DNA repair factor 53BP1 regulate gene transcription and responses to genotoxic stresses. Upon DNA damage, p53 undergoes dimethylation at Lys382 (p53K382me2), and this posttranslational modification is recognized by 53BP1. The molecular mechanism of the nonhistone methyllysine mark recognition remains unknown. Here we report a 1.6 Å resolution crystal structure of the tandem Tudor domain of human 53BP1 bound to a p53K382me2 peptide. In the complex, dimethylated Lys382 is restrained by a set of hydrophobic and cation-π interactions in a cage formed by four aromatic residues and an aspartate of 53BP1. The signature HKKme2 motif of p53, which defines the specificity, is identified through a combination of NMR resonance perturbations, mutagenesis, measurements of binding affinities and docking simulations and analysis of the crystal structures of 53BP1 bound to p53 peptides containing other dimethyllysine marks, p53K370me2 and p53K372me2. Binding of the 53BP1 Tudor domain to p53K382me2 may facilitate p53 accumulation at DNA damage sites and promote DNA repair as suggested by chromatin immunoprecipitation and DNA repair assays. Together, our data detail the molecular mechanism of the p53-53BP1 association and provide the basis for deciphering the role of this interaction in regulation of p53 and 53BP1 functions.
登录
查看更多内容
影响因子:
4.8
作者:
Kachirskaia, Ioulia;Shi, Xiaobing;Gozani, Or
通讯作者:
Gozani, Or
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
21.3
作者:
Fernandez-Capetillo, O;Chen, HT;Nussenzweig, A
通讯作者:
Nussenzweig, A
DOI:
10.1083/jcb.153.3.613
发表时间:
2001-04-30
期刊:
The Journal of cell biology
影响因子:
--
作者:
Rappold I;Iwabuchi K;Date T;Chen J
通讯作者:
Chen J
DOI:
10.1107/s090744499900935x
发表时间:
1999-10-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Pflugrath, JW
通讯作者:
Pflugrath, JW