Proton magnetic resonance studies of 7Fe ferredoxins. Three redox states of the [4Fe-4S] cluster in a Pseudomonas ovalis ferredoxin.
The oxidizability of a redox couple, [4Fe-4S], in a 7Fe ferredoxin extracted from Pseudomonas ovalis was monitored by 1H-NMR. The iron-sulfur cluster in the ferredoxin was not only reducible (Nagayama et al., 1983) but also oxidizable in its native form. This result provided the first verification of 3 redox states for a redox center in ferredoxin, 4Fe, in the native form of the protein.
D001665:Binding Sites; D005288:Ferredoxins; D009682:Magnetic Resonance Spectroscopy; D010084:Oxidation-Reduction; D011549:Pseudomonas
D005288:Ferredoxins