IUBMB Enzyme Nomenclature


Accepted name: geranyl diphosphate diphosphatase

Reaction: geranyl diphosphate + H2O = geraniol + diphosphate

For diagram of reaction click here.

Other name(s): geraniol synthase; geranyl pyrophosphate pyrophosphatase; GES; CtGES

Systematic name: geranyl-diphosphate diphosphohydrolase

Comments: Isolated from Ocimum basilicum (basil) and Cinnamomum tenuipile (camphor tree). Requires Mg2+ or Mn2+. Geraniol is labelled when formed in the presence of [18O]H2O. Thus mechanism involves a geranyl cation [1]. Neryl diphosphate is hydrolysed more slowly. May be the same as EC monoterpenyl-diphosphatase.

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


1. Iijima, Y., Gang, D.R., Fridman, E., Lewinsohn, E. and Pichersky, E. Characterization of geraniol synthase from the peltate glands of sweet basil. Plant Physiol. 134 (2004) 370-379. [PMID: 14657409]

2. Yang, T., Li, J., Wang, H.X. and Zeng, Y. A geraniol-synthase gene from Cinnamomum tenuipilum. Phytochemistry 66 (2005) 285-293. [PMID: 15680985]

[EC created 2012]

Return to EC 3.1.7 home page
Return to EC 3.1 home page
Return to EC 3 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page