a 16alpha-hydroxysteroid + NADP(+) <=> a 16-oxosteroid + NADPH + H(+)
a 16alpha-hydroxysteroid + nadp(+) <=> a 16-oxosteroid + nadph + h(+)
a 16alpha-hydroxysteroid + NADP(+) <=> a 16-oxosteroid + NADPH + H(+)
a 16alpha-hydroxysteroid + nadp(+) <=> a 16-oxosteroid + nadph + h(+)