Structure of Synechococcus elongatus [Fe2S2] ferredoxin in solution

被引:38
作者
Baumann, B
Sticht, H
Scharpf, M
Sutter, M
Haehnel, W
Rosch, P
机构
[1] UNIV BAYREUTH,LEHRSTUHL BIOPOLYMERE,D-95447 BAYREUTH,GERMANY
[2] UNIV FREIBURG,INST BIOL 2,LEHRSTUHL BIOCHEM PFLANZEN,D-79104 FREIBURG,GERMANY
关键词
D O I
10.1021/bi961144m
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Ferredoxins of the [Fe2S2] type function in photosynthetic electron transport as essential electron accepters of photosystem I. The solution structure of the 97 amino acid ferredoxin from the thermophilic cyanobacterium Synechococcus elongatus was determined by nuclear magnetic resonance spectroscopy and restrained molecular dynamics calculations. The structure consists of a four-stranded parallel/antiparallel beta-sheet, a short two-stranded antiparallel beta-sheet, and three short helices. The overall structure is similar to the structure of the ferredoxin from Anabaena. In contrast to related ferredoxins from mesophilic organisms, this thermostable protein contains a salt bridge inside a 17-amino acid hydrophobic core.
引用
收藏
页码:12831 / 12841
页数:11
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