The Enzyme Database

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Accepted name: α-seco-amyrin synthase
Reaction: (3S)-2,3-epoxy-2,3-dihydrosqualene = α-seco-amyrin
For diagram of α-amyrin, α-seco-amyrin and germanicol biosynthesis, click here
Glossary: α-seco-amyrin = 8,14-secoursa-7,13-diene-3β-ol
Systematic name: (3S)-2,3-epoxy-2,3-dihydrosqualene mutase (cyclizing, α-seco-amyrin-forming)
Comments: The enzyme from Arabidopsis thaliana is multifunctional and produces about equal amounts of α- and β-seco-amyrin. See EC, β-seco-amyrin synthase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Shibuya, M., Xiang, T., Katsube, Y., Otsuka, M., Zhang, H. and Ebizuka, Y. Origin of structural diversity in natural triterpenes: direct synthesis of seco-triterpene skeletons by oxidosqualene cyclase. J. Am. Chem. Soc. 129 (2007) 1450–1455. [DOI] [PMID: 17263431]
[EC created 2011]

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