||Contains molybdenum, [2Fe-2S] centres and FAD. The enzyme from liver exhibits a broad substrate specificity, and is involved in the metabolism of xenobiotics, including the oxidation of N-heterocycles and aldehydes and the reduction of N-oxides, nitrosamines, hydroxamic acids, azo dyes, nitropolycyclic aromatic hydrocarbons, and sulfoxides [4,6].
The enzyme is also responsible for the oxidation of retinal, an activity that was initially attributed to a distinct enzyme (EC 220.127.116.11, retinal oxidase) [5,7].
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