[Localization of the redox-center of cytochrome b562 on the internal (M-) side of the mitochondrial membrane].
In the inside-out submitochondrial particles, cytochrome b-562 is readily reduced by a hydrophilic redox mediator Ru(NH3)6(2)+; this reaction is not inhibited by antimycin and myxothiazol. In mitochondria, cytochromes b do not virtually interact with Ru(NH3)6(2)+. The accessibility of cytochrome b-562 to Ru(NH3)6(2)+ in submitochondrial particles and its inaccessibility in mitochondria suggest the localization of the hemoprotein redox center on the inner surface of the mitochondrial membrane.
D000818:Animals; D002417:Cattle; D002463:Cell Membrane Permeability; D010856:Columbidae; D003573:Cytochrome b Group / Q000378:metabolism*; D029968:Escherichia coli Proteins; D007425:Intracellular Membranes / Q000201:enzymology; D008929:Mitochondria, Heart / Q000201:enzymology*; D010084:Oxidation-Reduction; D013367:Submitochondrial Particles / Q000201:enzymology
D003573:Cytochrome b Group; D029968:Escherichia coli Proteins; C017850:cytochrome b562, E coli
Lokalizatsiia redoks-tsentra tsitokhroma b562 na vnutrenneĭ (M-) storone mitokhondrial'noĭ membrany.