label: 17alpha-hydroxypregnenolone + reduced [NADPH--hemoprotein reductase] + O2 => 3beta-hydroxyandrost-5-en-17-one + acetate + oxidized [NADPH--hemoprotein reductase] + H2O + 2 H(+)
label_lc: 17alpha-hydroxypregnenolone + reduced [nadph--hemoprotein reductase] + o2 => 3beta-hydroxyandrost-5-en-17-one + acetate + oxidized [nadph--hemoprotein reductase] + h2o + 2 h(+)