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Pathway

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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The electron transfer chain consists of the following sequential enzymes:

  • NADH dehydrogenase
  • coenzyme Q - ubiquinone
  • ubiquinone dehydrogenase
  • cytochrome c
  • cytochrome c oxidase

Additionally, FADH2 enters the chain at the level of coenzyme Q as the coenzyme in the membrane-bound portion of the enzyme succinate dehydrogenase. The protein pumping activities of NADH dehydrogenase, ubiquinone dehydrogenase and cytochrome c oxidase all contribute to ongoing oxidative phosphorylation.


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