首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Potentiation of proton transfer function by electrostatic interactions in photosynthetic reaction centers from Rhodobacter sphaeroides: First results from site-directed mutation of the H subunit
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Potentiation of proton transfer function by electrostatic interactions in photosynthetic reaction centers from Rhodobacter sphaeroides: First results from site-directed mutation of the H subunit

机译:球形红球菌在光合反应中心中通过静电相互作用增强质子传递功能:H亚基的定点突变的第一个结果

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摘要

The x-ray crystallographic structure of the photosynthetic reaction center (RC) has proven critical in understanding biological electron transfer processes. By con- trast, understanding of intraprotein proton transfer is easily lost in the immense richness of the details. In the RC of Rhodobacter (Rb.) sphaeroides, the secondary quinone (Q_B) is surrounded by amino acid residues of the L subunit and some buried water molecules, with M- and H-subunit residues also close by.
机译:光合作用反应中心(RC)的X射线晶体学结构已证明对理解生物电子转移过程至关重要。相比之下,由于细节的丰富性,对蛋白质内质子转移的理解很容易丢失。在球形球形红细菌(Rhodobacter(rb。)RC)中,次级醌(Q_B)被L亚基的氨基酸残基和一些埋藏的水分子包围,M和H亚基残基也靠近。

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