4.2.3.127	(2E,6E)-farnesyl diphosphate = beta-copaene + diphosphate	-	-	
4.2.3.127	(2E,6E)-farnesyl diphosphate = beta-copaene + diphosphate	cyclization reaction mechanism, overview	714733	
4.2.3.127	(2E,6E)-farnesyl diphosphate = beta-copaene + diphosphate	the reaction mechanism requires first the isomerization of all-trans (E,E)-FPP at the 2,3 double bond to generate a cisoid-farnesyl cation. Cop4 then catalyzes a 1,10 ring closure of this farnesyl cation isomer to form the secondary cis-germacrene-dienyl cation. Cop4 generates a tertiary cadinyl cation which upon deprotonation yields its major cyclization product delta-cadinene. The cadinyl cation reacts further to yield other cyclization products beta-cubebene, cubebol, beta-copaene, and sativene	-, 705783