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The enzyme alcohol dehydrogenase (ADH) fromseveral naturally occurring ADH variants ofDrosophila melanogaster and Drosophilasimulans was isolated. Affinity chromatography withthe ligand Cibacron Blue and elution with NAD+ showed similarbehavior for D. melanogaster ADH-FF, ADH-71k,and D. simulans ADH. Introduction of a secondCibacron Blue affinity chromatography step, withgradient elution with NAD+...