ExplorEnz: EC 4.2.3.144

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4.2.3.144

Accepted name:

geranyllinalool synthase

Reaction:

geranylgeranyl diphosphate + H₂O = (6E,10E)-geranyllinalool + diphosphate

For diagram of acyclic diterpenoid biosynthesis, click here

Glossary:

geranylgeranyl diphosphate = (2E,6E,10E)-3,7,11,15-tetramethylhexadeca-2,6,10,14-tetraen-1-yl diphosphate
(6E,10E)-geranyllinalool = (6E,10E)-3,7,11,15-tetramethylhexadeca-1,6,10,14-tetraen-3-ol

Other name(s):

TPS04/GES; GES

Systematic name:

geranylgeranyl-diphosphate diphosphate-lyase [(E,E)-geranyllinalool-forming]

Comments:

The enzyme is a component of the herbivore-induced indirect defense system. The product, (E,E)-geranyllinalool, is a precursor to the volatile compound 4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT), which is released by many plants in response to damage.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Herde, M., Gartner, K., Kollner, T.G., Fode, B., Boland, W., Gershenzon, J., Gatz, C. and Tholl, D. Identification and regulation of TPS04/GES, an Arabidopsis geranyllinalool synthase catalyzing the first step in the formation of the insect-induced volatile C¹⁶-homoterpene TMTT. Plant Cell 20 (2008) 1152–1168. [DOI] [PMID: 18398052]
2.	Attaran, E., Rostas, M. and Zeier, J. Pseudomonas syringae elicits emission of the terpenoid (E,E)-4,8,12-trimethyl-1,3,7,11-tridecatetraene in Arabidopsis leaves via jasmonate signaling and expression of the terpene synthase TPS4. Mol. Plant Microbe Interact. 21 (2008) 1482–1497. [DOI] [PMID: 18842097]

[EC 4.2.3.144 created 2013]