ID 4.2.3.8 DE casbene synthase. AN casbene synthetase. CA (2E,6E,10E)-geranylgeranyl diphosphate = casbene + diphosphate. CC -!- The enzyme from castor bean (Ricinus communis) produces the CC antifungal diterpene casbene. CC -!- Formerly EC 4.6.1.7. DR P59287, CASS_RICCO ; //