塑料醌
光系统II
光化学
质子化
光系统I
电子转移
700页
化学
光合作用
叶绿体
类囊体
生物化学
基因
离子
有机化学
作者
Rana Hussein,André T. Graça,Jack Forsman,A. Orkun Aydin,Michael Hall,Julia Gaetcke,Petko Chernev,Petra Wendler,Holger Dobbek,Johannes Messinger,Athina Zouni,Wolfgang P. Schröder
出处
期刊:Science
[American Association for the Advancement of Science]
日期:2024-06-20
卷期号:384 (6702): 1349-1355
被引量:23
标识
DOI:10.1126/science.adn6541
摘要
Photosystem II starts the photosynthetic electron transport chain that converts solar energy into chemical energy and thus sustains life on Earth. It catalyzes two chemical reactions: water oxidation to molecular oxygen and plastoquinone reduction. Coupling of electron and proton transfer is crucial for efficiency; however, the molecular basis of these processes remains speculative owing to uncertain water binding sites and the lack of experimentally determined hydrogen positions. We thus collected high-resolution cryo-electron microscopy data of fully hydrated photosystem II from the thermophilic cyanobacterium
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