label: 9alpha-hydroxy-androst-4-ene-3,17-dione + NAD(+) + H2O => androst-4-ene-3,17-dione + NADH + O2 + H(+)
label_lc: 9alpha-hydroxy-androst-4-ene-3,17-dione + nad(+) + h2o => androst-4-ene-3,17-dione + nadh + o2 + h(+)