EC 4.2.1.124     
Accepted name: arabidiol synthase
Reaction: arabidiol = (3S)-2,3-epoxy-2,3-dihydrosqualene + H2O
Glossary: arabidiol = (13R)-malabarica-17,21-diene-3,14-diol
Other name(s): PEN1 (gene name); (S)-squalene-2,3-epoxide hydro-lyase (arabidiol forming)
Systematic name: (3S)-2,3-epoxy-2,3-dihydrosqualene hydro-lyase (arabidiol-forming)
Comments: The reaction occurs in the reverse direction.
References:
1.  Xiang, T., Shibuya, M., Katsube, Y., Tsutsumi, T., Otsuka, M., Zhang, H., Masuda, K. and Ebizuka, Y. A new triterpene synthase from Arabidopsis thaliana produces a tricyclic triterpene with two hydroxyl groups. Org. Lett. 8 (2006) 2835–2838. [PMID: 16774269]
[EC 4.2.1.124 created 2011]