ID 1.14.19.11 DE acyl-[acyl-carrier-protein] 4-desaturase. AN Delta(4)-palmitoyl-[acyl carrier protein] desaturase. CA 2 H(+) + hexadecanoyl-[ACP] + O2 + 2 reduced [2Fe-2S]-[ferredoxin] = CA (4Z)-hexadecenoyl-[ACP] + 2 H2O + 2 oxidized [2Fe-2S]-[ferredoxin]. CC -!- The enzymes from the plants Coriandrum sativum (coriander) and Hedera CC helix are involved in biosynthesis of petroselinate [(6Z)-octadec-6- CC enoate], which is formed by elongation of (4Z)-hexadec-4-enoate. CC -!- The ivy enzyme can also act on oleoyl-[acyl-carrier protein] and CC palmitoleoyl-[acyl-carrier protein], generating the corresponding CC 4,9-diene. DR E3PZS1, STAD1_OPHSP; E3PZS3, STAD2_OPHAA; E3PZS2, STAD2_OPHSP; DR E3PZS0, STAD3_OPHAA; E3PZR9, STAD3_OPHSP; P32063, STAD_CORSA ; //