Menaquinol oxidase (H+-transporting)
class of enzymes

Menaquinol oxidase (H+-transporting) (EC 7.1.1.5, cytochrome aa3-600 oxidase) is an enzyme with systematic name menaquinol:O2 oxidoreductase (H+-transporting). This enzyme catalyses the following chemical reaction
2 menaquinol + O2
⇌
{\displaystyle \rightleftharpoons }
2 menaquinone + 2 H2O
Cytochrome aa3-600, one of the respiratory oxidases from Bacillus subtilis, is a member of the heme-copper family of oxygen reductases.
“Menaquinol oxidase (H+-transporting)” enters the record as class of enzymes. Crown Archives preserves that source wording while asking what Menaquinol, oxidase and -transporting can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 26, 2025. The linked authority identifier is Q3652060. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Menaquinol oxidase (H+-transporting)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.