A four-iron ferredoxin from Desulfovibrio desulfuricans.
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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.
SUBMITTER: Zubieta JA
PROVIDER: S-EPMC1177777 | biostudies-other | 1973 Aug
REPOSITORIES: biostudies-other
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