Mitochondria cytochrome c oxidase

The function of the enzymes of the mitochondrial respiratory chain is to transform the energy of redox reactions into an electrochemical proton gradient across the hydrophobic barrier of a coupling membrane. Isolated oligoenzyme complexes of the respiratory chain of mitochondria, cytochrome c oxidase, succinate ytochrome c reductase, and NADH CoQ reductase, are able to catalyze charge transfer in model systems, e.g., at a water/octane interface, which can be followed by a change in the interfacial potential at this interface [20-... 

Aerobic oxidation of cytochrome c is accomplished by cytochrome c oxidase representing the terminal step of the respiratory chain of mitochondria. Cytochrome c oxidase can be considered as being the acceptor and donor of 4 electrons but for the present, the mechanism of molecular oxygen reduction remains a controversial issue [63]. The experiments with cytochrome c oxidase in the octane/water system... 

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