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Catalysis of the four-electron reduction of dioxygen (O2) to water, coupled to generation of a proton electrochemical gradient across a membrane. Catalysis of the reaction: ubiquinol + O2 = ubiquinone + 2 H2R; cytochrome O is the electron acceptor. Catalysis of an oxidation-reduction (redox) reaction in which a diphenol or related substance acts as a hydrogen or electron donor and reduces a hydrogen or electron acceptor. Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced. null Catalysis of an oxidation-reduction (redox) reaction in which a diphenol, or related compound, acts as a hydrogen or electron donor and reduces oxygen.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: cytochrome o ubiquinol oxidase activity
Acc: GO:0008827
Aspect: Molecular Function
Desc: Catalysis of the reaction: ubiquinol + O2 = ubiquinone + 2 H2R; cytochrome O is the electron acceptor.
Proteins in PDR annotated with:
   This term: 3 [Search]
   Term or descendants: 7 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0008827 - cytochrome o ubiquinol oxidase activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle