L-pentahomomethionine + reduced [NADPH--hemoprotein reductase] + O2 = N-hydroxy-L-pentahomomethionine + oxidized [NADPH--hemoprotein reductase] + H2O + 2 H(+)
l-pentahomomethionine + reduced [nadph--hemoprotein reductase] + o2 = n-hydroxy-l-pentahomomethionine + oxidized [nadph--hemoprotein reductase] + h2o + 2 h(+)