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The EXAFS study on the local structure of lanthanum in spinach PSII
Chen, WJ; Tao Y(陶冶); Ta, Y
2001
发表期刊BIOLOGICAL TRACE ELEMENT RESEARCH
卷号82期号:1-3页码:#REF!
通讯作者Chen, WJ (reprint author), Natl Agr Res Ctr, Upland Weed Lab, Dept Farmland Utilizat, Kannondai 3-1-1, Tsukuba, Ibaraki 3058666, Japan.
摘要The complex of photosystem II (PSII) had been prepared from spinach by treatment with Triton X-100. The PSII which had been depleted of the extrinsic 17- and 23-kDa polypeptides, was obtained by exposing the solution to a high concentration of NaCl, and the complex of PSII-La3+ was prepared by treatment with LaCl3. The result indicated that La3+ could inhibit the oxygen-evolution activity of PSII by replacing the Ca2+. The local structural environment of La in PSII has been also studied by using extended X-ray absorption fine structure (EXAFS). The primary result of EXAFS indicated that La coordinated with eight oxygen and/or nitrogen atoms, with the distance of the La-O/N bond being 2.5 Angstrom. In addition, La coordinated with four carbon atoms, with a distance of 3.5 Angstrom in the second shell. In the third shell, La coordinated with two manganese atoms, with the distance of La-Mn bond being 4.49 Angstrom, and it was also found that the La-Mn distance (4.49 A) was longer than that of Ca-Mn (3.3.Angstrom) (1) in PSII.
文章类型Article
关键词spinach PSII lanthanum local structure EXAFS
学科领域Biochemistry & Molecular Biology; Endocrinology & Metabolism
DOI10.1385/BTER:82:1-3:231
收录类别SCI
WOS类目Biochemistry & Molecular Biology ; Endocrinology & Metabolism
WOS记录号WOS:000171653500020
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227091
专题多学科研究中心
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GB/T 7714
Chen, WJ,Tao Y,Ta, Y. The EXAFS study on the local structure of lanthanum in spinach PSII[J]. BIOLOGICAL TRACE ELEMENT RESEARCH,2001,82(1-3):#REF!.
APA Chen, WJ,陶冶,&Ta, Y.(2001).The EXAFS study on the local structure of lanthanum in spinach PSII.BIOLOGICAL TRACE ELEMENT RESEARCH,82(1-3),#REF!.
MLA Chen, WJ,et al."The EXAFS study on the local structure of lanthanum in spinach PSII".BIOLOGICAL TRACE ELEMENT RESEARCH 82.1-3(2001):#REF!.
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