... FEBS 2002Medium-chain dehydrogenases/reductases (MDR)Family characterizations including genome comparisons and active site modellingErik Nordling1,2, Hans Jo¨ rnvall1and Bengt Persson1,21Department ... and can be used in genome annotations.Keywords: medium-chain dehydrogenases/reductases;genome comparisons; polyol dehydrogenase; cinnamylalcohol dehydrogenase; quinone oxidoreductase.Medium-chain ... melano-gaster and S. cerevisiae genomes. These isoforms show81.2–99.7% residue identity in pairwise comparisons. Inaddition, S. cerevisiae has one further SDH form that isonly 53% identical to the...