(20R)-20-hydroxypregn-4-en-3-one + NAD(+) <=> progesterone + NADH + H(+)
(20r)-20-hydroxypregn-4-en-3-one + nad(+) <=> progesterone + nadh + h(+)
(20R)-20-hydroxypregn-4-en-3-one + NAD(+) <=> progesterone + NADH + H(+)
(20r)-20-hydroxypregn-4-en-3-one + nad(+) <=> progesterone + nadh + h(+)