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A new class EC 7, Translocases, has been added to the EC list. It will be part of ENZYME from release 2018_10. Read more about EC 7 here.

ENZYME entry: EC

Accepted Name
Menaquinol oxidase (H(+)-transporting).
Alternative Name(s)
Cytochrome aa3-600 oxidase.
Cytochrome bd oxidase.
Reaction catalysed
2 menaquinol + O(2) <=> 2 menaquinone + 2 H(2)O
Cu cation; Heme.
  • Cytochrome aa3-600, one of the principal respiratory oxidases from Bacillus subtilis, is a member of the heme-copper superfamily of oxygen reductases, and is a close homolog of the cytochrome bo3 ubiquinol oxidase from Escherichia coli, but uses menaquinol instead of ubiquinol as a substrate.
  • The enzyme also pumps protons across the membrane bilayer, generating a proton motive force.
PRIAM enzyme-specific profiles1.10.3.12
KEGG Ligand Database for Enzyme Nomenclature1.10.3.12
IUBMB Enzyme Nomenclature1.10.3.12
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