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BRENDA support

Information on EC 7.1.1.5 - menaquinol oxidase (H+-transporting)

for references in articles please use BRENDA:EC7.1.1.5

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IUBMB Comments

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 homologue 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.

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

Synonyms
cytochrome aa3-600, menaquinol oxidase, cytochrome bd terminal oxidase, qoxab, cyt aa3-600, menaquinol:o2 oxidoreductase, qox.aa3, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
2 menaquinol + O2 + n H+[side 1] = 2 menaquinone + 2 H2O + n H+[side 2]
show the reaction diagram
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