An Electrophoretically Cryptic Alcohol Dehydrogenase Variant in Drosophila melanogaster. III. Biochemical Properties and Comparison with Common Enzyme Forms

Abstract

The biochemical properties of the heat-stable alcohol dehydrogenase variant ADH-FCh.D. have been investigated and compared with those of the two common enzyme forms ADH-F and ADH-S. The results show that ADH-F and ADH-S differ with respect to substrate specificity, their response to high concentrations of secondary alcohols and their apparent Michaelis constants for three alcohols in two different buffer systems. In all these tests the enzyme ADH-FCh.D. resembles ADH-S much more closely than ADH-F.