EC 4.2.3.98     
Accepted name: (+)-T-muurolol synthase
Reaction: (2E,6E)-farnesyl diphosphate + H2O = (+)-T-muurolol + diphosphate
Glossary: (+)-T-muurolol = (1R,4R,4aS,8aR)-1,6-dimethyl-4-(propan-2-yl)-1,2,3,4,4a,7,8,8a-octahydronaphthalen-1-ol
Systematic name: (2E,6E)-farnesyl-diphosphate diphosphate-lyase (cyclizing, (+)-T-muurolol-forming)
Comments: The cyclization mechanism involves an intermediate nerolidyl diphosphate leading to a helminthogermacradienyl cation. After a 1,3-hydride shift of the original 1-pro-S hydrogen of farnesyl diphosphate, cyclization and deprotonation result in (+)-T-muurolol.
References:
1.  Hu, Y., Chou, W.K., Hopson, R. and Cane, D.E. Genome mining in Streptomyces clavuligerus: expression and biochemical characterization of two new cryptic sesquiterpene synthases. Chem. Biol. 18 (2011) 32–37. [PMID: 21276937]
[EC 4.2.3.98 created 2012]