CYP725A4 from yew catalyzes complex structural rearrangement of taxa-4(5), 11(12)-diene into the cyclic ether 5(12)-oxa-3(11)-cyclotaxane - Rontein, D; Onillon, S; Herbette, G; Lesot, A; Werck-Reichhart, D; Sallaud, C; Tissier, A (J Biol Chem, 2008)