ID 1.14.14.107 DE ent-kaurenoic acid monooxygenase. AN CYP88A3. AN ent-kaurenoic acid oxidase. CA ent-kaur-16-en-19-oate + 3 O2 + 3 reduced [NADPH--hemoprotein reductase] CA = gibberellin A12 + 4 H(+) + 4 H2O + 3 oxidized [NADPH--hemoprotein CA reductase]. CC -!- A cytochrome P450 (heme-thiolate) protein from plants. CC -!- Catalyzes three sucessive oxidations of ent-kaurenoic acid. CC -!- The second step includes a ring-B contraction giving the gibbane CC skeleton. CC -!- In pumpkin (Cucurbita maxima) ent-6alpha,7alpha-dihydroxykaur-16- CC en-19-oate is also formed. CC -!- Formerly EC 1.14.13.79. DR O23051, KAO1_ARATH ; Q9AXH9, KAO1_HORVU ; Q9C5Y2, KAO2_ARATH ; DR Q5VRM7, KAO_ORYSJ ; //