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. 1973 Aug;133(4):851–854. doi: 10.1042/bj1330851

A four-iron ferredoxin from Desulfovibrio desulfuricans (Short Communication)

J A Zubieta *, R Mason *, J R Postgate †
PMCID: PMC1177777  PMID: 4748838

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.

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Selected References

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