doi: 10.1016/0014-5793(78)80190-2.
Cytochrome c oxidase is not a proton pump
- PMID: 206463
- DOI: 10.1016/0014-5793(78)80190-2
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Cytochrome c oxidase is not a proton pump
FEBS Lett.
.
Free article
Abstract
We conclude that the reduction of O2 to 2 H2O by cytochrome c oxidase of rat liver mitochondria involves the translocation of 4-from cytochrome c at the outer surface of the cristae membrane per O2 reduced and protonated by 4 H+ ions that enter the reaction domain from the inner aqueous phase. This net electron-translocating function of cytochrome c oxidase plugged through the mitochondrial cristae membrane is not linked to a proton-pumping function, such as that proposed by Wikström [7,8].
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