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Direct detection and measurement of electron relays in a multicentered enzyme: Voltammetry of electrode-surface films of E-coli fumarate reductase, an iron-sulfur flavoprotein

Abstract:

Intramolecular electron relays operating in a multicentered enzyme are revealed by protein film voltammetry. The membrane-extrinsic catalytic domain of E. coli fumarate reductase (FrdAB) adsorbs to electroactive monolayer coverage at a rotating pyrolytic graphite edge electrode, giving characteristic voltammetric signals that are resolved and assigned to redox-active sites. At pH 7.3 (2°C), signals attributable to Centers 1 ([2Fe-2S) and 3 ([3Fe-4S]) and FAD are envelop together around -50 mV...

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Publication status:
Published

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Publisher copy:
10.1021/ja9723242

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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
Volume:
119
Issue:
48
Pages:
11628-11638
Publication date:
1997-12-03
DOI:
EISSN:
1520-5126
ISSN:
0002-7863
Language:
English
Pubs id:
pubs:45720
UUID:
uuid:040c0a83-46e2-4dfd-a428-f73c2c46571c
Local pid:
pubs:45720
Source identifiers:
45720
Deposit date:
2013-11-16

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