Reaction: 9α-copalyl diphosphate = stemod-13(17)-ene + diphosphate
For diagram of reaction, click here
Glossary: syn-copalyl diphosphate = 9α-copalyl diphosphate
exo-stemodene = stemod-13(17)-ene
Other name(s): OsKSL11; stemodene synthase
Systematic name: 9α-copalyl-diphosphate diphosphate-lyase [stemod-13(17)-ene-forming]
Comments: This enzyme catalyses the committed step in the biosynthesis of the stemodane family of diterpenoid secondary metabolites, some of which possess mild antiviral activity. The enzyme also produces stemod-12-ene and stemar-13-ene as minor products.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number:
References:
1. Morrone, D., Jin, Y., Xu, M., Choi, S.Y., Coates, R.M. and Peters, R.J. An unexpected diterpene cyclase from rice: functional identification of a stemodene synthase. Arch. Biochem. Biophys. 448 (2006) 133-140. [PMID: 16256063]