ID   1.1.1.53
DE   3-alpha-(or 20-beta)-hydroxysteroid dehydrogenase.
AN   (R)-20-hydroxysteroid dehydrogenase.
AN   Cortisone reductase.
CA   Androstan-3-alpha,17-beta-diol + NAD(+) = 17-beta-hydroxyandrostan-3-one
CA   + NADH.
CC   -!- The 3-alpha-hydroxy group or 20-beta-hydroxy group of pregnane and
CC       androstane steroids can act as donor.
PR   PROSITE; PDOC00060;
DR   P69166, HSD_MYCBO  ;  P69167, HSD_MYCTU  ;  P19992, HSD_STREX  ;
//