Structure Basis for Shaping the Nse4 Protein by the Nse1 and Nse3 Dimer within the Smc5/6 Complex.
Structure Basis for Shaping the Nse4 Protein by the Nse1 and Nse3 Dimer within the Smc5/6 Complex.
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DOI:
10.1016/j.jmb.2021.166910
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发表时间:
2021-04-30
影响因子:
5.6
通讯作者:
Cho Y
中科院分区:
文献类型:
--
作者:
Jo A;Li S;Shin JW;Zhao X;Cho Y
The Smc5/6 complex facilitates chromosome replication and DNA break repair. Within this complex, a subcomplex composed of Nse1, Nse3 and Nse4 is thought to play multiple roles through DNA binding and regulating ATP-dependent activities of the complex. However, how the Nse1-Nse3-Nse4 subcomplex carries out these multiple functions remain unclear. To address this question, we determine the crystal structure of the Xenopus laevis Nse1-Nse3-Nse4 subcomplex at 1.7 Å resolution and examine how it interacts with DNA. Our structural analyses show that the Nse1-Nse3 dimer adopts a closed conformation and forms three interfaces with a segment of Nse4, forcing it into a Z-shaped conformation. The Nse1-Nse3-Nse4 structure provides an explanation for how the lung disease immunodeficiency and chromosome breakage syndrome-causing mutations could dislodge Nse4 from Nse1-Nse3. Our DNA binding and mutational analyses reveal that the N-terminal and the middle region of Nse4 contribute to DNA interaction and cell viability. Integrating our data with previous crosslink mass spectrometry data, we propose potential roles of the Nse1-Nse3-Nse4 complex in binding DNA within the Smc5/6 complex.
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DOI:
10.1126/science.aar7831
发表时间:
2018-04-06
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Dekker C
影响因子:
3.7
作者:
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通讯作者:
Palecek J
影响因子:
14.8
作者:
Kelley LA;Mezulis S;Yates CM;Wass MN;Sternberg MJ
通讯作者:
Sternberg MJ
影响因子:
3.7
作者:
Guerineau M;Kriz Z;Kozakova L;Bednarova K;Janos P;Palecek J
通讯作者:
Palecek J
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