tetrahydroalstonine + reduced [NADPH--hemoprotein reductase] + O2 <=> dihydroalstonine + oxidized [NADPH--hemoprotein reductase] + 2 H2O + H(+)
tetrahydroalstonine + reduced [nadph--hemoprotein reductase] + o2 <=> dihydroalstonine + oxidized [nadph--hemoprotein reductase] + 2 h2o + h(+)
tetrahydroalstonine + reduced [NADPH--hemoprotein reductase] + O2 <=> dihydroalstonine + oxidized [NADPH--hemoprotein reductase] + 2 H2O + H(+)
tetrahydroalstonine + reduced [nadph--hemoprotein reductase] + o2 <=> dihydroalstonine + oxidized [nadph--hemoprotein reductase] + 2 h2o + h(+)