Purity: 2X Crystallized. A lyophilized powder.
Quantity: >300 units per mg protein
Store: -20 °C lyophilized powder and 2 to 8 °C of the suspension
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Alcohol dehydrogenase derived from yeast is a metalloenzyme containing four tightly bound zinc atoms per molecule (Vallee and Hoch, Proc. Natl. Acad. Sci. USA, 41, 327, 1955). The optimum pH for the enzymatic oxidation of ethanol is 8.6-9.0 and is closer to 7.0 for the reduction of acetaldehyde.