Evidence for discrete Cd(SCys)4 units in cadmium phytochelatin complexes from EXAFS spectroscopy

Evidence for discrete Cd(SCys)4 units in cadmium phytochelatin complexes from EXAFS spectroscopy
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DOI：
10.1039/c39910001129
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发表时间：
1991
期刊：
Journal of The Chemical Society, Chemical Communications
影响因子：
--
通讯作者：
H. Strasdeit;A. Duhme;R. Kneer;M. Zenk;C. Hermes;H. Nolting
H. Strasdeit;A. Duhme;R. Kneer;M. Zenk;C. Hermes;H. Nolting
中科院分区：
其他
文献类型：
--
作者：
H. Strasdeit;A. Duhme;R. Kneer;M. Zenk;C. Hermes;H. Nolting

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从Cd-EXAFS （EXAFS =扩展x射线吸收精细结构）数据推断出镉（II）与植物肽植物螯合素的多核配合物的主要结构特征：(i) Cd(SCys)4配位，（II）与Cd-金属硫蛋白相反，不形成镉“簇”和（iii）非配位羧酸基团。
The principal structural features of multinuclear complexes of cadmium(II) with the plant-peptide phytochelatin have been deduced from Cd-EXAFS (EXAFS = extended X-ray absorption fine structure) data: (i) Cd(SCys)4 coordination, (ii) in contrast to Cd-metallothioneins, no formation of cadmium ‘clusters’ and (iii) non-coordinating carboxylate groups.