In its active site, Cys-146, Cys-174, His-67, and Ser-48 coordinate a zinc atom.
This protein's substrate can also be processed by cytochrome P450 2E1. Lactobacillus kefir's use as a biocatalyst is due to the broad substrate specificity of this enzyme, other catalytically useful examples of which come from Thermonanaerobium brockii and horse liver.  Potent inhibitors of this enzyme include CNAD and pyrazole. Types of this enzyme include cinnamyl ones in plants and dimeric ones in mammals, which can include EE, ES, and SS varieties depending on whether they include steroid-active monomers. In its active site, Cys-146, Cys-174, His-67, and Ser-48 coordinate a zinc atom. Its sigma-sigma form is found in the stomach. A hepatic form of this oxidoreductase can lead to blindness by catalyzing the oxidation of methanol to formaldehyde. For ten points, name this enzyme which in yeast can generating NAD+ and its namesake product during fermentation.
This protein's substrate can also be processed by cytochrome P450 2E1.
alcohol dehydrogenase [also accept ADH]