ID 4.2.3.73 DE valencene synthase. CA (2E,6E)-farnesyl diphosphate = (+)-valencene + diphosphate. CC -!- The recombinant enzyme from Vitis vinifera gave 49.5% (+)-valencene CC and 35.5% (-)-7-epi-alpha-selinene. CC -!- Initial cyclization gives (+)-germacrene A in an enzyme bound form CC which is not released to the medium. DR A0A385AJM6, TPS12_DICPU; G8H5N0, TPS17_SOLHA; G5CV52, TPS17_SOLLC; DR D0UZK2, TPS1_CITSI ; Q6Q3H2, TPSVS_VITVI; //