Nature Communications (Aug 2018)

Control of transmembrane charge transfer in cytochrome c oxidase by the membrane potential

  • Markus L. Björck,
  • Peter Brzezinski

DOI
https://doi.org/10.1038/s41467-018-05615-5
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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Cytochrome c oxidase (CytcO) is the last enzyme of the electron transport chain, but how the electrochemical membrane potential affects CytcO is unclear. Here the authors show that proton uptake to the catalytic site of CytcO and presumably proton translocation was impaired by the potential, but electron transfer was not affected.