“Abolition of ubiquinone biosynthesis by mutation of ubiA or ubiF does not … acetaldehyde dehydrogenase or the alcohol dehydrogenase activity of AdhE. Guaiacol 2-methoxyphenol ), which resembles the intermediate that builds up in ubiH … lacking the octaprenyl side-chain, was found to inhibit ethanol metabolism in vivo, … of acetaldehyde dehydrogenase.”