The Enzyme Database

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EC 4.2.3.99     
Accepted name: labdatriene synthase
Reaction: 9α-copalyl diphosphate = (12E)-9α-labda-8(17),12,14-triene + diphosphate
For diagram of diterpenoids from 9α-copalyl diphosphate, click here
Glossary: 9α-copalyl diphosphate = syn-copalyl diphosphate = (2E)-3-methyl-5-[(1R,4aS,8aS)-5,5,8a-trimethyl-2-methylidenedecahydronaphthalen-1-yl]pent-2-en-1-yl trihydrogen diphosphate
(12E)-9α-labda-8(17),12,14-triene = (4aS,5R,8aS)-1,1,4a-trimethyl-6-methylidene-5-[(2E)-3-methylpenta-2,4-dien-1-yl]decahydronaphthalene
Other name(s): OsKSL10 (gene name)
Systematic name: 9α-copalyl-diphosphate diphosphate-lyase [(12E)-9α-labda-8(17),12,14-triene-forming]
Comments: The enzyme from rice (Oryza sativa), expressed in Escherichia coli, also produces ent-sandaracopimara-8(14),15-diene from ent-copalyl diphosphate, another naturally occuring copalyl isomer in rice (cf. ent-sandaracopimaradiene synthase, EC 4.2.3.29).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Morrone, D., Hillwig, M.L., Mead, M.E., Lowry, L., Fulton, D.B. and Peters, R.J. Evident and latent plasticity across the rice diterpene synthase family with potential implications for the evolution of diterpenoid metabolism in the cereals. Biochem. J. 435 (2011) 589–595. [PMID: 21323642]
[EC 4.2.3.99 created 2012]
 
 


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