Domain organization of photosystem II in membranes of the cyanobacterium Synechocystis PCC6803 investigated by electron microscopy
Domain organization of photosystem II in membranes of the cyanobacterium Synechocystis PCC6803 investigated by electron microscopy
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DOI：
10.1016/j.febslet.2008.04.044
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发表时间：
2008-05-28
期刊：
影响因子：
3.5
通讯作者：
Boekema, Egbert J.
中科院分区：
文献类型：
--
作者：
Folea, I. Mihaela;Zhang, Pengpeng;Boekema, Egbert J.
通过电子显微镜研究了蓝藻集胞藻 6803 光合膜中光系统 II (PSII) 复合物的超分子组织。温和的去污剂溶解后，提取结晶 PSII 阵列，其中二聚 PSII 颗粒以多行缔合。阵列的图像处理显示 PSII 二聚体紧密堆积在 12.2 和 16.7 nm 的距离处。这些域被认为是防止从 PSII 向光系统 I (PSI) 溢出能量或从藻胆体到 PSI 的直接能量流的重要关联类型，因为后者只能位于阵列的外围。 (C) 2008 年欧洲生化学会联合会。由 Elsevier B.V. 出版。保留所有权利。
The supramolecular organization of photosystem II (PSII) complexes in the photosynthetic membrane of the cyanobacterium Synechocystis 6803 was studied by electron microscopy. After mild detergent solubilization, crystalline PSII arrays were extracted in which dimeric PSII particles associate in multiple rows. Image processing of the arrays shows that the PSII dimers are tightly packed at distances of 12.2 and 16.7 nm. The domains are considered to be an important type of association for preventing either spill-over energy from PSII towards photosystem I (PSI) or direct energy flow from phycobilisomes to PSI, because the latter can only be at periphery of the arrays. (C) 2008 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.