Membrane-anchored cytochrome c as an electron carrier in photosynthesis and respiration:: past, present and future of an unexpected discovery

被引:11
作者
Daldal, F [1 ]
Deshmukh, M
Prince, RC
机构
[1] Univ Penn, Dept Biol, Inst Plant Sci, Philadelphia, PA 19104 USA
[2] ExxonMobil Res & Engn Co, Annandale, NJ 08801 USA
关键词
cytochrome c; F; Daldal; electron transfer; BL Marrs; P; Mathis; membrane-anchored c-type cytochrome; photosynthesis; RC Prince; respiration; D; Zannoni;
D O I
10.1023/A:1024999101226
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In the mid 1980s, it was observed that photosynthesis could still occur in the absence of the diffusible electron carrier cytochrome c(2) in the purple non-sulfur facultative phototrophic bacterium Rhodobacter capsulatus. This serendipic finding led to the discovery of a novel class of membrane-anchored electron carrier cytochromes and their associated electron transfer pathways. Studies of cytochrome c(y) of R. capsulatus ( and its homologues in other species) have modified the previous dogma of electron transfer between photosynthetic and respiratory membrane protein complexes with a new paradigm, in which these proteins and their electron carriers can form 'hard-wired' structural super-complexes. Here, we reminisce on the early days of this discovery, its impacts on our understanding of cellular energy transduction pathways and the physiological roles played by the electron carrier cytochromes c, and discuss the current knowledge and emerging future challenges of this field.
引用
收藏
页码:127 / 134
页数:8
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