锰和酪氨酰自由基在光合放氧过程中的作用。
Manganese and tyrosyl radical function in photosynthetic oxygen evolution.
作者信息
Tommos C, Hoganson C W, Valentin M D, Lydakis-Simantiris N, Dorlet P, Westphal K, Chu H A, McCracken J, Babcock G T
机构信息
Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA.
出版信息
Curr Opin Chem Biol. 1998 Apr;2(2):244-52. doi: 10.1016/s1367-5931(98)80066-5.
Photosystem II catalyzes the photosynthetic oxidation of water to O2. The structural and functional basis for this remarkable process is emerging. The catalytic site contains a tetramanganese cluster, calcium, chloride and a redox-active tyrosine organized so as to promote electroneutral hydrogen atom abstraction from manganese-bound substrate water by the tyrosyl radical. Recent work is assessed within the framework of this model for the water oxidizing process.
光系统II催化水光合氧化生成氧气。这一非凡过程的结构和功能基础正在显现。催化位点包含一个四锰簇、钙、氯和一个氧化还原活性酪氨酸，其组织方式是促进酪氨酸自由基从与锰结合的底物水中进行电中性氢原子提取。在这个水氧化过程模型的框架内对近期的研究工作进行了评估。
Zotero 插件