Reaction catalyzed by acyl-CoA (9+3)-desaturase (1.14.19.6)
+
reduced acceptor
+
=
+
acceptor
+
2
H2O
oleoyl-CoA
+
reduced acceptor
+
O2
=
9,12-octadecadienoyl-CoA
+
acceptor
+
2 H2O