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
复制标题

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
复制
发表时间:
2014
期刊:
影响因子:
2.9
通讯作者:
Kouhei Tsumoto
Kouhei Tsumoto
中科院分区:
生物学3区
文献类型:
--
作者:
Shinya Tashiro;Jose M. M. Caaveiro;Chun-Xiang Wu;Quyen Q. Hoang; Kouhei Tsumoto

文献摘要

相似文献

DJ-1 突变会导致家族性帕金森病 (PD),但 DJ-1 在 PD 中的作用仍未解决。最近的报告表明 DJ-1 与铜离子相互作用。这一证据为理解 DJ-1 的功能及其在 PD 中的作用开辟了新途径。在此,我们报道了 Zn(II) 与 DJ-1 的结合在所检测的其他金属中具有很高的选择性:Mn(II)、Fe(II)、Co(II)、Ni(II) 和 Cu(II)。高分辨率 X 射线晶体学(1.18 Å 分辨率)显示 Zn(II) 通过关键残基 Cys106 和 Glu18 与蛋白质配位。这些结果表明 DJ-1 可能受到 Zn(II) 的调节和/或稳定。
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).