Reaction catalyzed by acyl-[acyl-carrier-protein] 4-desaturase (1.14.19.11)
+
2
reduced ferredoxin [iron-sulfur] cluster
+
+
2
=
+
2
oxidized ferredoxin [iron-sulfur] cluster
+
2
H2O
palmitoyl-[acyl-carrier protein]
+
2 reduced ferredoxin [iron-sulfur] cluster
+
O2
+
2 H+
=
(4Z)-hexadec-4-enoyl-[acyl-carrier protein]
+
2 oxidized ferredoxin [iron-sulfur] cluster
+
2 H2O