IUBMB Enzyme Nomenclature


Accepted name: manoyl oxide synthase

Reaction: (13E)-8α-hydroxylabd-13-en-15-yl diphosphate = manoyl oxide + diphosphate

For diagram of reaction click here

Glossary: (13E)-8α-hydroxylabd-13-en-15-yl diphosphate = 8-hydroxycopalyl diphosphate
manoyl oxide = (13R)-8,13-epoxylabd-14-ene

Other name(s): GrTPS6; CfTPS3; CfTPS4; MvELS

Systematic name: (13E)-8α-hydroxylabd-13-en-15-yl-diphosphate diphosphate-lyase (manoyl-oxide-forming)

Comments: Manoyl oxide is found in many plants. This enzyme has been isolated from the plants, Grindelia hirsutula (gum weed), Plectranthus barbatus (forskohlii) and Marrubium vulgare (white horehound).

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Zerbe, P., Hamberger, B., Yuen, M.M., Chiang, A., Sandhu, H.K., Madilao, L.L., Nguyen, A., Hamberger, B., Bach, S.S. and Bohlmann, J. Gene discovery of modular diterpene metabolism in nonmodel systems. Plant Physiol. 162 (2013) 1073-1091. [PMID: 23613273]

2. Pateraki, I., Andersen-Ranberg, J., Hamberger, B., Heskes, A.M., Martens, H.J., Zerbe, P., Bach, S.S., Moller, B.L., Bohlmann, J. and Hamberger, B. Manoyl oxide (13R), the biosynthetic precursor of forskolin, is synthesized in specialized root cork cells in Coleus forskohlii. Plant Physiol. 164 (2014) 1222-1236. [PMID: 24481136]

3. Zerbe, P., Chiang, A., Dullat, H., O'Neil-Johnson, M., Starks, C., Hamberger, B. and Bohlmann, J. Diterpene synthases of the biosynthetic system of medicinally active diterpenoids in Marrubium vulgare. Plant J. 79 (2014) 914-927. [PMID: 24990389]

[EC created 2017]

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