This site is intended for healthcare professionals

Sign in
Go to /sign-in page

You can view 5 more pages without signing in

Cytochrome c oxidase

Authoring team

Cytochrome C oxidase is an enzyme of the inner mitochondrial membrane that is part of the electron transfer chain. It is made up of at least 8 subunits and has two coenzymes:

  • cytochrome a
  • cytochrome a3

Cytochrome C oxidase accepts electrons from cytochrome c and transfers them to oxygen. Ultimately, oxygen is converted to water and a proton is pumped across the inner membrane to the mitochondrial intermembranous space. This proton is used to create ATP during oxidative phosphorylation.

Related pages

Create an account to add page annotations

Create a free account

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.