IUBMB Enzyme Nomenclature


Accepted name: pseudolaratriene synthase

Reaction: geranylgeranyl diphosphate = pseudolaratriene + diphosphate

For diagram of reaction click here

Glossary: pseudolaradiene = (1RS,3aSR,8aRS)-3a,6-dimethyl-1-(6-methylhepta-2,5-dien-2-yl)-1,2,3,3a,4,7,8,8a-octahydrohydroazulene

Other name(s): PxaTPS8

Systematic name: geranylgeranyl-diphosphate diphosphate-lyase (cyclizing, pseudolaradiene-forming)

Comments: Isolated from the plant Pseudolarix amabilis (golden larch). The product is oxidized to pseudolaric acid B, a microtubule-destabilizing agent.

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


1. Mafu, S., Karunanithi, P.S., Palazzo, T.A., Harrod, B.L., Rodriguez, S.M., Mollhoff, I.N., O'Brien, T.E., Tong, S., Fiehn, O., Tantillo, D.J., Bohlmann, J. and Zerbe, P. Biosynthesis of the microtubule-destabilizing diterpene pseudolaric acid B from golden larch involves an unusual diterpene synthase. Proc. Natl Acad. Sci. USA 114 (2017) 974-979. [PMID: 28096378]

[EC created 2017]

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