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Information on EC 1.10.3.11 - ubiquinol oxidase (non-electrogenic)

for references in articles please use BRENDA:EC1.10.3.11

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IUBMB Comments

The enzyme, described from the mitochondria of plants and some fungi and protists, is an alternative terminal oxidase that is not sensitive to cyanide inhibition and does not generate a proton motive force. Unlike the electrogenic terminal oxidases that contain hemes (cf. EC 1.10.3.10 and EC 1.10.3.14), this enzyme contains a dinuclear non-heme iron complex. The function of this oxidase is believed to be dissipating excess reducing power, minimizing oxidative stress, and optimizing photosynthesis in response to changing conditions.

The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Reaction Schemes

Synonyms
alternative oxidase, aox1a, mitochondrial alternative oxidase, alternative oxidases, aox1b, cyanide-resistant oxidase, aox1c, cyanide-insensitive oxidase, cioab, cyanide-resistant alternative oxidase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
2 ubiquinol + O2 = 2 ubiquinone + 2 H2O
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
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