Accepted name: α-amyrin synthase
Reaction: (3S)-2,3-epoxy-2,3-dihydrosqualene = α-amyrin
Other name(s): 2,3-oxidosqualene α-amyrin cyclase; mixed amyrin synthase
Systematic name: (3S)-2,3-epoxy-2,3-dihydrosqualene mutase (cyclizing, α-amyrin-forming)
Comments: A multifunctional enzyme which produces both α- and β-amyrin (see EC, β-amyrin synthase).
1.  Morita, M., Shibuya, M., Kushiro, T., Masuda, K. and Ebizuka, Y. Molecular cloning and functional expression of triterpene synthases from pea (Pisum sativum) new α-amyrin-producing enzyme is a multifunctional triterpene synthase. Eur. J. Biochem. 267 (2000) 3453–3460. [PMID: 10848960]
[EC created 2011]