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Formation of a stable cyano-bridged dinuclear iron cluster following oxidation ...
Auchère, Françoise; Raleiras, Patrícia; Benson, Linda; Tavares, Pedro; Moura, José J. G.; Moura, Isabel; Rusnak, FrankInorg. Chem., 2003, 42 (4), pp 938–940 DOI: 10.1021/ic0262886 ; Superoxide reductases catalyze the monovalent reduction of superoxide anion to hydrogen peroxide. Spectroscopic evidence for the formation of a dinuclear cyano-bridged adduct after K(3)Fe(CN)(6) oxidation of the superoxide reductases neelaredoxin from Treponema pallidum and desulfoferrodoxin from Desulfovibrio vulgaris was reported. Oxidation with...
Zinc-substituted desulfovibrio gigas desulforedoxins
Moura, Isabel; Goodfellow, Brian J.; Nunes, Sofia G.; Rusnak, Frank; Ascenso, Carla; Moura, José J. G.; Volkman, Brian F.; Markley, John L.Protein Science (2002), 11:2464–2470 ; Desulfovibrio gigas desulforedoxin (Dx) consists of two identical peptides, each containing one [Fe-4S]center per monomer. Variants with different iron and zinc metal compositions arise when desulforedoxin is produced recombinantly from Escherichia coli. The three forms of the protein, the two homodimers [Fe(III)/Fe(III)]Dx and [Zn(II)/Zn(II)]Dx, and the heterodimer [Fe(I...
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