protoasukamycin + NADH + O2 + H(+) = 4-hydroxyprotoasukamycin + NAD(+) + H2O
protoasukamycin + nadh + o2 + h(+) = 4-hydroxyprotoasukamycin + nad(+) + h2o
"protoasukamycin 4-monooxygenase"
"protoasukamycin 4-monooxygenase"