CAJ | 학술논문

光系统Ⅰ(PSⅠ)是整合于光合膜上的由多个蛋白亚基组成的色素蛋白复合物,它在光合电子传递链中催化电子从PC经过一系列电子传递体到Fd的传递.近20年特别是近几年来,有关光合作用PSⅠ结构与功能的研究取得了显著的进展,获得了很多具有重要意义的结果.本文综合介绍了近年来在PSⅠ的蛋白亚基组成及其特性、PSⅠ介导的3种电子传递过程、PSⅠ特有的外周捕光色素蛋白复合物系统(LHCⅠ)以及最新的有关PSⅠ 4?分辨率的三维晶体结构生物学研究的进展情况,并对未来的研究进行了展望.
광계통Ⅰ(PSⅠ)시정합우광합막상적유다개단백아기조성적색소단백복합물,타재광합전자전체련중최화전자종PC경과일계렬전자전체체도Fd적전체.근20년특별시근궤년래,유관광합작용PSⅠ결구여공능적연구취득료현저적진전,획득료흔다구유중요의의적결과.본문종합개소료근년래재PSⅠ적단백아기조성급기특성、PSⅠ개도적3충전자전체과정、PSⅠ특유적외주포광색소단백복합물계통(LHCⅠ)이급최신적유관PSⅠ 4?분변솔적삼유정체결구생물학연구적진전정황,병대미래적연구진행료전망.
Photosystem Ⅰ (PSⅠ) is a pigment_protein complex embedded in the photosynthetic membrane, which includes more than ten protein subunits, and catalyses the transfer of electrons from the PC to the Fd through a series of electron transfer components. There is considerable progress in the structural and functional study of PSⅠ in the past two decades, and especially in recent years. In this review, we describe the protein composition of PSⅠ and its characteristics, the three electron transfer processes that PSⅠ mediates, the unique light harvesting pigment_protein complex (LHCⅠ) of PSⅠ and the latest 4? resolution three_dimensional structural biology information of PSⅠ. We also foresee the future research of PSⅠ.