A two-subunit cytochrome c oxidase (cytochrome aa3) from Paracoccus dentrificans.

  title={A two-subunit cytochrome c oxidase (cytochrome aa3) from Paracoccus dentrificans.},
  author={B. Ludwig and Gottfried Schatz},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={77 1},
Cytochrome c oxidase (ferrocytochrome c: oxygen oxidoreductase, EC was purified from the cytoplasmic membrane of the bacterium Paracoccus denitrificans. The enzyme contains two heme groups (a and a3) and two copper atoms per minimal unit, oxidizes mammalian cytochrome c at a high rate, and, when incorporated into liposomes, generates an electrochemical proton gradient during cytochrome c oxidation. Sodium dodecyl sulfate/polyacrylamide gel electrophoresis reveals only two subunits of… CONTINUE READING

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