Accepted name: (+)-α-barbatene synthase
Reaction: (2E,6E)-farnesyl diphosphate = (+)-α-barbatene + diphosphate
Other name(s): AtBS
Systematic name: (2E,6E)-farnesyl-diphosphate diphosphate-lyase [(+)-α-barbatene-forming]
Comments: The recombinant enzyme from the plant Arabidopsis thaliana produces 27.3% α-barbatene, 17.8% thujopsene (cf. EC, thujopsene synthase) and 9.9% β-chamigrene (cf. EC, β-chamigrene synthase) [1] plus traces of other sesquiterpenoids [2].
1.  Wu, S., Schoenbeck, M.A., Greenhagen, B.T., Takahashi, S., Lee, S., Coates, R.M. and Chappell, J. Surrogate splicing for functional analysis of sesquiterpene synthase genes. Plant Physiol. 138 (2005) 1322–1333. [PMID: 15965019]
2.  Tholl, D., Chen, F., Petri, J., Gershenzon, J. and Pichersky, E. Two sesquiterpene synthases are responsible for the complex mixture of sesquiterpenes emitted from Arabidopsis flowers. Plant J. 42 (2005) 757–771. [PMID: 15918888]
[EC created 2011, modified 2012]