EC |
4.2.3.106 |
Accepted name: |
(E)-β-ocimene synthase |
Reaction: |
geranyl diphosphate = (E)-β-ocimene + diphosphate |
Glossary: |
(E)-β-ocimene = (3E)-3,7-dimethylocta-1,3,6-triene |
Other name(s): |
β-ocimene synthase; AtTPS03; ama0a23; LjEβOS; MtEBOS |
Systematic name: |
geranyl-diphosphate diphosphate-lyase [(E)-β-ocimene-forming] |
Comments: |
Widely distributed in plants, which release β-ocimene when attacked by herbivorous insects. |
Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
References: |
1. |
Faldt, J., Arimura, G., Gershenzon, J., Takabayashi, J. and Bohlmann, J. Functional identification of AtTPS03 as (E)-β-ocimene synthase: a monoterpene synthase catalyzing jasmonate- and wound-induced volatile formation in Arabidopsis thaliana. Planta 216 (2003) 745–751. [DOI] [PMID: 12624761] |
2. |
Dudareva, N., Martin, D., Kish, C.M., Kolosova, N., Gorenstein, N., Faldt, J., Miller, B. and Bohlmann, J. (E)-β-ocimene and myrcene synthase genes of floral scent biosynthesis in snapdragon: function and expression of three terpene synthase genes of a new terpene synthase subfamily. Plant Cell 15 (2003) 1227–1241. [DOI] [PMID: 12724546] |
3. |
Arimura, G., Ozawa, R., Kugimiya, S., Takabayashi, J. and Bohlmann, J. Herbivore-induced defense response in a model legume. Two-spotted spider mites induce emission of (E)-β-ocimene and transcript accumulation of (E)-β-ocimene synthase in Lotus japonicus. Plant Physiol. 135 (2004) 1976–1983. [DOI] [PMID: 15310830] |
4. |
Navia-Gine, W.G., Yuan, J.S., Mauromoustakos, A., Murphy, J.B., Chen, F. and Korth, K.L. Medicago truncatula (E)-β-ocimene synthase is induced by insect herbivory with corresponding increases in emission of volatile ocimene. Plant Physiol. Biochem. 47 (2009) 416–425. [DOI] [PMID: 19249223] |
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[EC 4.2.3.106 created 2012] |
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EC |
4.2.3.228 |
Accepted name: |
(Z)-β-ocimene synthase |
Reaction: |
geranyl diphosphate = (Z)-β-ocimene + diphosphate |
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For diagram of acyclic monoterpenoid biosynthesis, click here |
Glossary: |
(Z)-β-ocimene = (3Z)-3,7-dimethyl-1,3,6-octatriene |
Other name(s): |
CsTPS13PK (gene name) |
Systematic name: |
geranyl diphosphate diphosphate lyase [(Z)-β-ocimene-forming] |
Comments: |
The enzyme occurs in flowers (pistillate inflorescences) of Cannabis sativa. The enzyme encoded by CsTPS13PK produces 94% (Z)-β-ocimene from geranyl diphosphate. cf. EC 4.2.3.106, (E)-β-ocimene synthase. |
Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
References: |
1. |
Booth, J.K., Page, J.E. and Bohlmann, J. Terpene synthases from Cannabis sativa. PLoS One 12:e0173911 (2017). [DOI] [PMID: 28355238] |
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[EC 4.2.3.228 created 2024] |
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