19-hydroxyandrost-4-ene-3,17-dione + reduced [NADPH--hemoprotein reductase] + O2 = 19-oxo-androst-4-ene-3,17-dione + oxidized [NADPH--hemoprotein reductase] + 2 H2O + H(+)
19-hydroxyandrost-4-ene-3,17-dione + reduced [nadph--hemoprotein reductase] + o2 = 19-oxo-androst-4-ene-3,17-dione + oxidized [nadph--hemoprotein reductase] + 2 h2o + h(+)