a 7-oxosteroid + NADPH + H(+) => 7alpha-hydroxy steroid + NADP(+)
a 7-oxosteroid + nadph + h(+) => 7alpha-hydroxy steroid + nadp(+)
a 7-oxosteroid + NADPH + H(+) => 7alpha-hydroxy steroid + NADP(+)
a 7-oxosteroid + nadph + h(+) => 7alpha-hydroxy steroid + nadp(+)