Structural basis of DNA ligase IV-Artemis interaction in nonhomologous end-joining.
Structural basis of DNA ligase IV-Artemis interaction in nonhomologous end-joining.
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DOI:
10.1016/j.celrep.2012.11.004
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发表时间:
2012-12-27
期刊:
影响因子:
8.8
通讯作者:
Aggarwal AK
中科院分区:
文献类型:
--
作者:
De Ioannes P;Malu S;Cortes P;Aggarwal AK
DNA ligase IV (LigIV) and Artemis are central components of the Non-Homologous End Joining (NHEJ) machinery that is required for V(D)J recombination and the maintenance of genomic integrity in mammalian cells. We report here crystal structures of the LigIV DNA binding domain (DBD) in both its apo form and in complex with a peptide derived from the Artemis C-terminal region. We show that LigIV interacts with Artemis through an extended hydrophobic surface. In particular, we find that helix α2 in LigIV DBD is longer than in other mammalian ligases and presents residues which specifically interact with the Artemis peptide that adopts a beta-helix conformation on binding. Mutations of key residues on the LigIV DBD hydrophobic surface abolish the interaction. Together, our results provide structural insights into the specificity of LigIV-Artemis interaction and how the enzymatic activities of the two proteins may be coordinated during NHEJ.
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影响因子:
16
作者:
Grawunder, U;Zimmer, D;Lieber, MR
通讯作者:
Lieber, MR
DOI:
10.1084/jem.20111437
发表时间:
2012-05-07
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Malu S;De Ioannes P;Kozlov M;Greene M;Francis D;Hanna M;Pena J;Escalante CR;Kurosawa A;Erdjument-Bromage H;Tempst P;Adachi N;Vezzoni P;Villa A;Aggarwal AK;Cortes P
通讯作者:
Cortes 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
影响因子:
2.9
作者:
Cotner-Gohara, Elizabeth;Kim, Ln-Kwon;Hammel, Michal;Tainer, John A.;Tomkinson, Alan E.;Ellenberger, Tom
通讯作者:
Ellenberger, Tom
影响因子:
4.8
作者:
Chen, L;Trujillo, K;Tomkinson, AE
通讯作者:
Tomkinson, AE