an N-acyleicosasphinganine + AH2 + O2 <=> an N-acyleicosasphing-4-enine + A + 2 H2O
an n-acyleicosasphinganine + ah2 + o2 <=> an n-acyleicosasphing-4-enine + a + 2 h2o
an N-acyleicosasphinganine + AH2 + O2 <=> an N-acyleicosasphing-4-enine + A + 2 H2O
an n-acyleicosasphinganine + ah2 + o2 <=> an n-acyleicosasphing-4-enine + a + 2 h2o