IUBMB Enzyme Nomenclature


Accepted name: ent-pimara-8(14),15-diene synthase

Reaction: ent-copalyl diphosphate = ent-pimara-8(14),15-diene + diphosphate

For diagram of reaction, click here

Other name(s): OsKS5

Systematic name: ent-copalyl-diphosphate diphosphate-lyase [ent-pimara-8(14),15-diene-forming]

Comments: Unlike EC, ent-sandaracopimaradiene synthase, which can produce both ent-sandaracopimaradiene and ent-pimara-8(14),15-diene, this diterpene cyclase produces only ent-pimara-8(14),15-diene. ent-Pimara-8(14),15-diene is not a precursor in the biosynthesis of either gibberellins or phytoalexins.

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


1. Kanno, Y., Otomo, K., Kenmoku, H., Mitsuhashi, W., Yamane, H., Oikawa, H., Toshima, H., Matsuoka, M., Sassa, T. and Toyomasu, T. Characterization of a rice gene family encoding type-A diterpene cyclases. Biosci. Biotechnol. Biochem. 70 (2006) 1702-1710. [PMID: 16861806]

[EC created 2008]

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