Proton magnetic resonance studies of 7Fe ferredoxins

FEBS Letters

Nagayama, K.³  Imax, T.¹  Oshima, T.²  Ohmori, D.⁴ 

[1] Department of Chemistry, College of Science, Rikkyo (St. Paul's) University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171 Japan;Mitsubishi-Kasei Institute of Life Science, Machida, Tokyo 194, Japan;Department of Physics, Faculty of Science, University of Tokyo, Tokyo 113 Japan;Department of Chemistry, School of Medicine, Juntendo University, Narashino, Chiba 275 Japan

关键词: NMR;    Ferredoxin;    3Fe core;    4Fe core;    Iron-sulfur;   

DOI  :  10.1016/0014-5793(84)80293-8

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The redox couples in 7Fe ferredoxins (Fd) treated with ferricyanide were monitored by ¹H-NMR. An excess amount of ferricyanide was found to effect conversion of one of the two redox centers, the 4Fe core, to a 3Fe core in the ferredoxins extracted from Thermus thermophilus, Mycobacterium smegmatis and Pseudomonas ovalis. On long term incubation in air, the converted 3Fe core showed even further change in NMR spectra.

【 授权许可】

Unknown