Thus , the two substrates of this enzyme are 3alpha - hydroxy - 5beta - androstane - 17 - one and NAD , .
Its 3 products are 5beta - androstane - 3 .
Thus , the two substrates of this enzyme are 3alpha - hydroxy - 5beta - androstane - 17 - one and NAD , whereas its 3 products are 5beta - androstane - 3 .