Single-Electron Reduction of the Oxidized State Is Coupled to Proton Uptake via the K Pathway in Paracoccus denitrificans Cytochrome C Oxidase

The reductive part of the catalytic cycle of cytochrome c oxidase from Paracoccus denitrificans was examined by using time-resolved potential measurements on black lipid membranes. Proteoliposomes were adsorbed to the black lipid membranes and RuII(2,2′-bipyridyl)3 2+was used as photoreductant to me...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2000-04, Vol.97 (9), p.4632-4636
Hauptverfasser:	Ruitenberg, Maarten, Kannt, Aimo, Bamberg, Ernst, Ludwig, Bernd, Michel, Hartmut, Fendler, Klaus
Format:	Artikel
Sprache:	eng
Schlagworte:	Amino Acid Substitution Biochemistry Biological Sciences Cytochromes Electrical phases Electrochemistry - methods Electron Transport Complex IV - chemistry Electron Transport Complex IV - metabolism Electrons Enzymes Hydrogen-Ion Concentration Kinetics Liposomes Membrane potential Membrane Potentials Mutagenesis, Site-Directed Oxidases Oxidation Oxidation-Reduction Paracoccus denitrificans Paracoccus denitrificans - enzymology Photochemistry Potassium Cyanide - pharmacology Protons Pumping Recombinant Proteins - chemistry Recombinant Proteins - metabolism Time constants
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