ID 4.2.1.98 DE 16alpha-hydroxyprogesterone dehydratase. AN 16alpha-dehydroxylase. AN 16alpha-hydroxyprogesterone dehydroxylase. AN 16-dehydroprogesterone hydratase. AN hydroxyprogesterone dehydroxylase. CA 16alpha-hydroxyprogesterone = 16,17-didehydroprogesterone + H2O. CC -!- 16alpha-Hydroxypregnenolone is also a substrate. CC -!- Formerly EC 4.2.1.86. //