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Very rapid, cooperative two-electron/two-proton redox reactions of [3Fe-4S] clusters: Detection and analysis by protein-film voltammetry

Abstract:

The 'hyper-reduced' [3Fe-4S]2- cluster (consisting formally of three Fe(II) atoms and four sulfides (S2-)) possesses a remarkable capability for very rapid and reversible two-electron/two-proton oxidation (E(o') > -650 mv below pH 7) that is strongly suggestive of disulfide-based (as opposed to Fe- based) redox chemistry. This otherwise elusive reactivity is most readily revealed by performing fast-scan protein-film voltammetry on ferredoxins that contain a [3Fe-4S] cluster using an electr...

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Publication status:
Published

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Publisher copy:
10.1021/ja981693a

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Inorganic Chemistry
Role:
Author
Journal:
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY More from this journal
Volume:
120
Issue:
46
Pages:
11994-11999
Publication date:
1998-11-25
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
Language:
English
Pubs id:
pubs:36795
UUID:
uuid:f988e39d-9063-4b9b-aff1-460af3bb4e61
Local pid:
pubs:36795
Source identifiers:
36795
Deposit date:
2013-11-17

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