A four-iron ferredoxin from Desulfovibrio desulfuricans (Short Communication)
Authors:
- 1 August 1973
- journal article
- Published by Portland Press Ltd. in Biochemical Journal
- Vol. 133 (4) , 851-854
Abstract
Ferredoxin from Desulfovibrio desulfuricans was isolated, purified and crystallized. It contains four iron atoms and four sulphido or ‘acid-labile’ sulphur atoms for a molecule of 6000 daltons. The absorption spectrum in the u.v.–visible region and the electron-paramagnetic-resonance signals of the reduced protein are similar to those observed for other four-iron ferredoxins. The amino acid composition is different from that of Desulfovibrio gigas ferredoxin. The redox potential of −0.33V at pH7.0 was determined by dye techniques.Keywords
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