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首页> 外文期刊>Acta crystallographica.Section D. Biological crystallography >Crystallization and preliminary crystallographic studies on the extrinsic 23 kDa protein in the oxygen-evolving complex of photosystem II.
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Crystallization and preliminary crystallographic studies on the extrinsic 23 kDa protein in the oxygen-evolving complex of photosystem II.

机译：结晶和初步的晶体研究外在23 kDa蛋白质光系统II oxygen-evolving复杂。

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摘要

The extrinsic 23 kDa protein in the oxygen-evolving complex (OEC23 or PsbP) of photosystem II (PS II) helps to retain calcium and chloride ions, which are essential cofactors for the photosynthetic evolution of oxygen. OEC23 is found in the PS II complex from higher plants and green algae, but not in that from cyanobacteria or other ancestral photosynthetic organisms. In order to elucidate the three-dimensional structure and its molecular evolution, OEC23 was crystallized by the hanging-drop vapour-diffusion technique with PEG 4000 as a precipitant. Diffraction data to a resolution of 2.0 A were collected from a native crystal belonging to space group P2(1)2(1)2, with unit-cell parameters a = 91.36, b = 74.15, c = 52.16 A.
机译：外在23 kDa蛋白质oxygen-evolving复杂(OEC23或PsbP)光系统II (PS II)有助于保持钙和氯离子,这是至关重要的代数余子式光合作用演化的氧气。在PS中找到二世从高等植物复杂吗和绿色藻类,但不从蓝细菌或其他祖先的光合作用生物。三维结构及其分子进化,OEC23结晶了悬滴vapour-diffusion技术挂钩4000年作为沉淀剂。2.0解决从本地收集水晶属于空间群P2 (1) 2 (1) 2,晶胞参数= 91.36,b = 74.15, c =52.16。

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