Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation.

Diner BA

首页> 外文期刊>Biochimica et biophysica acta: international journal of biochemistry and biophysics >Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation.

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Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation.

机译：氨基酸残基参与光系统II锰簇的配位和组装。氧化还原活性酪氨酸的质子耦合电子传输及其与水氧化的关系。

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The combination of site-directed mutagenesis, isotopic labeling, new magnetic resonance techniques and optical spectroscopic methods have provided new insights into cofactor coordination and into the mechanism of electron transport and proton-coupled electron transport in photosystem II. Site-directed mutations in the D1 polypeptide of this photosystem have implicated a number of histidine and carboxylate residues in the coordination and assembly of the manganese cluster, responsible for photosynthetic water oxidation. Many of these are located in the carboxy-terminal region of this polypeptide close to the processing site involved in its maturation. This maturation is a required precondition for cluster assembly. Recent proposals for the mechanism of water oxidation have directly implicated redox-active tyrosine Y(Z) in this mechanism and have emphasized the importance of the coupling of proton and electron transfer in the reduction of Y(Z)(radical) by the Mn cluster. The interaction of both homologous redox-active tyrosines Y(Z) and Y(D) with their respective homologous proton acceptors is discussed in an effort to better understand the significance of such coupling.

机译：定点诱变，同位素标记，新的磁共振技术和光谱学方法的结合为光系统II中的辅因子配位以及电子传输和质子耦合电子传输的机理提供了新见解。该光系统的D1多肽中的定点突变已牵涉到负责光合水氧化的锰簇的配位和组装中的许多组氨酸和羧酸盐残基。其中许多位于该多肽的羧基末端区域，靠近其成熟所涉及的加工位点。该成熟度是群集组装的必要先决条件。关于水氧化机理的最新提议直接将氧化还原活性酪氨酸Y（Z）牵涉到该机理中，并强调了质子和电子转移耦合对Mn团簇还原Y（Z）（自由基）的重要性。。讨论了同源氧化还原活性酪氨酸Y（Z）和Y（D）与它们各自的同源质子受体的相互作用，目的是为了更好地理解这种偶联的重要性。

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《Biochimica et biophysica acta: international journal of biochemistry and biophysics》 |2001年第2期|共17页
作者
Diner BA;
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正文语种 eng
中图分类生物化学;
关键词
Amino Acids; Manganese; Organometallic Compounds; Photosynthetic Reaction Center; Plant; 氨基酸类; 锰; 有机金属化合物; 光合作用中心; 植物; 酪氨酸;

机译：Amino Acids;Manganese;Organometallic Compounds;Photosynthetic Reaction Center;Plant;氨基酸类;锰;有机金属化合物;光合作用中心;植物;酪氨酸;

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1. Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation. [J] . Diner BA Biochimica et biophysica acta: international journal of biochemistry and biophysics . 2001,第1a2期

机译：氨基酸残基参与光系统II锰簇的配位和组装。氧化还原活性酪氨酸的质子耦合电子传输及其与水氧化的关系。
2. Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation [J] . Bruce A. Diner Biochimica et biophysica acta. Bioenergetics . 2001,第1a2期

机译：氨基酸残基参与光系统II锰簇的配位和组装。氧化还原活性酪氨酸的质子耦合电子传输及其与水氧化的关系
3. Amino acid residues that modulate the properties of tyrosine Y(Z) and the manganese cluster in the water oxidizing complex of photosystem II. [J] . Debus RJ Biochimica et biophysica acta: international journal of biochemistry and biophysics . 2001,第1a2期

机译：氨基酸残基可调节光系统II的水氧化复合物中酪氨酸Y（Z）和锰簇的性质。
4. Chemical evolution of the water oxidizing complex: Speciation and cofactor binding in the assembly of the tetra-manganese cluster in photosystem II. [D] . Dasgupta, Jyotishman. 2006

机译：水氧化复合物的化学演化：光系统II中四锰簇的组装中的形态和辅因子结合。
5. A difference Fourier-transform infrared study of two redox-active tyrosine residues in photosystem II. [O] . G M MacDonald, K A Bixby, B A Barry 1993

机译：光系统II中两个氧化还原活性酪氨酸残基的差异傅里叶变换红外研究。
6. Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation [O] . Diner Bruce A 2001

机译：氨基酸残基参与光系统II锰簇的配位和组装。氧化还原活性酪氨酸的质子耦合电子传输及其与水氧化的关系

Amino acid residues involved in the coordination and assembly of the manganese cluster of photosystem II. Proton-coupled electron transport of the redox-active tyrosines and its relationship to water oxidation.

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