F A Armstrong
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Explore the profile of F A Armstrong including associated specialties, affiliations and a list of published articles.
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48
Citations
437
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Recent Articles
1.
Volbeda A, Mouesca J, Darnault C, Roessler M, Parkin A, Armstrong F, et al.
Chem Commun (Camb)
. 2018 Jun;
54(52):7175-7178.
PMID: 29888350
The crystal structure of the Escherichia coli O2-sensitive C19G [NiFe]-hydrogenase-1 variant shows that the mutation results in a novel FeS cluster, proximal to the Ni-Fe active site. While the proximal...
2.
Ash P, Carr S, Reeve H, Skorupskaite A, Rowbotham J, Shutt R, et al.
Chem Commun (Camb)
. 2017 May;
53(43):5858-5861.
PMID: 28504793
We describe an approach to generating and verifying well-defined redox states in metalloprotein single crystals by combining electrochemical control with synchrotron infrared microspectroscopic imaging. For NiFe hydrogenase 1 from Escherichia...
3.
Heering H, Mondal M, Armstrong F
Anal Chem
. 2011 Jun;
71(1):174-82.
PMID: 21662940
Staircase cyclic voltammetry (SCV) is the digital counterpart of analog cyclic voltammetry (CV). However, when the redox-active species is adsorbed at the electrode surface, the voltammetric peak shapes (width, height,...
4.
Tilley G, CAMBA R, Burgess B, Armstrong F
Biochem J
. 2001 Dec;
360(Pt 3):717-26.
PMID: 11736664
Interconversion between [4Fe-4S] cubane and [3Fe-4S] cuboidal states represents one of the simplest structural changes an iron-sulphur cluster can undertake. This reaction is implicated in oxidative damage and in modulation...
5.
Bateman L, Leger C, Goodin D, Armstrong F
J Am Chem Soc
. 2001 Sep;
123(38):9260-3.
PMID: 11562206
A H52Q variant of yeast cytochrome c peroxidase (CcP), in which the distal histidine is replaced by glutamine, catalyzes oxidation of H(2)O(2) instead of reduction. This redirection of catalytic action...
6.
Leger C, Heffron K, Pershad H, Maklashina E, Cecchini G, Ackrell B, et al.
Biochemistry
. 2001 Sep;
40(37):11234-45.
PMID: 11551223
Protein film voltammetry is used to probe the energetics of electron transfer and substrate binding at the active site of a respiratory flavoenzyme--the membrane-extrinsic catalytic domain of Escherichia coli fumarate...
7.
Heffron K, Leger C, Rothery R, Weiner J, Armstrong F
Biochemistry
. 2001 Mar;
40(10):3117-26.
PMID: 11258926
Protein film voltammetry (PFV) of Escherichia coli dimethyl sulfoxide (DMSO) reductase (DmsABC) adsorbed at a graphite electrode reveals that the catalytic activity of this complex Mo-pterin/Fe-S enzyme is optimized within...
8.
Armstrong F, CAMBA R, Heering H, Hirst J, Jeuken L, Jones A, et al.
Faraday Discuss
. 2001 Feb;
(116):191-203; discussion 257-68.
PMID: 11197478
A wealth of information on the reactions of redox-active sites in proteins can be obtained by voltammetric studies in which the protein sample is arranged as a layer on an...
9.
Jung Y, Bonagura C, Tilley G, Armstrong F, Stout C, Burgess B
J Biol Chem
. 2000 Aug;
275(47):36974-83.
PMID: 10961993
All naturally occurring ferredoxins that have Cys-X-X-Asp-X-X-Cys motifs contain [4Fe-4S](2+/+) clusters that can be easily and reversibly converted to [3Fe-4S](+/0) clusters. In contrast, ferredoxins with unmodified Cys-X-X-Cys-X-X-Cys motifs assemble [4Fe-4S](2+/+)...
10.
CAMBA R, Armstrong F
Biochemistry
. 2000 Aug;
39(34):10587-98.
PMID: 10956051
Rapid responses of biological [4Fe-4S] clusters to conditions of oxidative stress have been studied by protein-film voltammetry by using precise pulses of electrode potential to trigger reactions. Investigations with Clostridium...