Thermodynamic and Structural Characterization of the Specific Binding of Zn(II) to Human Protein DJ-1
Thermodynamic and Structural Characterization of the Specific Binding of Zn(II) to Human Protein DJ-1
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Zn(II) 与人蛋白 DJ-1 特异性结合的热力学和结构表征
DOI:
10.1021/bi500294h
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发表时间:
2014
期刊:
影响因子:
2.9
通讯作者:
Kouhei Tsumoto
中科院分区:
文献类型:
--
作者:
Shinya Tashiro;Jose M. M. Caaveiro;Chun-Xiang Wu;Quyen Q. Hoang; Kouhei Tsumoto
Mutations ofDJ-1cause familial Parkinson’s disease (PD), although the role ofDJ-1in PD remains unresolved. Very recent reports have shown that DJ-1 interacts with copper ions. This evidence opens new avenues to understanding the function of DJ-1 and its role in PD. Herein, we report that Zn(II) binds to DJ-1 with great selectivity among the other metals examined: Mn(II), Fe(II), Co(II), Ni(II), and Cu(II). High-resolution X-ray crystallography (1.18 Å resolution) shows Zn(II) is coordinated to the protein by the key residues Cys106 and Glu18. These results suggest that DJ-1 may be regulated and/or stabilized by Zn(II).