| cortisone reductase | <enzyme> An enzyme that catalyses the interconversion of a ketone and hydroxy group at c-20 of cortisone and other 17,20,21-trihydroxy steroids. Chemical name: 3 alpha(or 20 beta)-Hydroxysteroid:NAD+ oxidoreductase Registry number: EC 1.1.1.53 (12 Dec 1998) |
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