In enzymology, a Native Alcaligenes sp. Choline Oxidase (EC 1.1.3.17) is an enzyme that catalyzes the chemical reaction: choline + O2? betaine aldehyde + H2O2. Thus, the two substrates of this enzyme are choline and O2, whereas its two products are betaine aldehyde and H2O2. This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with oxygen as acceptor. https://diagnostic-enzymes.creative-enzymes.com/native-alcaligenes-sp-choline-oxidase-item-89.html