ID 4.2.3.133 DE alpha-copaene synthase. CA (2E,6E)-farnesyl diphosphate = alpha-copaene + diphosphate. CC -!- Isolated from Helianthus annuus (sunflower). CC -!- The enzyme also produces beta-caryophyllene, delta-cadinene and CC traces of other sesquiterpenoids. CC -!- See EC 4.2.3.13 and EC 4.2.3.57. DR H9L9E5, COP_ELETR ; Q4U3F6, CS_HELAN ; Q2NM15, FARS_MAIZE ; DR B8PD44, STS10_POSPM; A0A348B779, STS1_POSPM ; A0A348B780, STS2_POSPM ; DR J7LP58, TPS1_PHYDL ; B9S9Z3, TPS1_RICCO ; A0A2R4QKX7, TPS3_PIPNI ; DR Q29VN3, TPS8_MAIZE ; //