label: androst-4-ene-3,17-dione + acetate + oxidized [NADPH--hemoprotein reductase] + H2O + 2 H(+) => 17alpha-hydroxyprogesterone + reduced [NADPH--hemoprotein reductase] + O2
label_lc: androst-4-ene-3,17-dione + acetate + oxidized [nadph--hemoprotein reductase] + h2o + 2 h(+) => 17alpha-hydroxyprogesterone + reduced [nadph--hemoprotein reductase] + o2