(E)-beta-ocimene_synthase References

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(E)-β-ocimene synthase
(E)-β-ocimene synthase
Identifiers
EC no.	4.2.3.106
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
PMC
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PubMed	articles
NCBI	proteins

(E)-β-Ocimene synthase (EC 4.2.3.106, β-ocimene synthase, AtTPS03, ama0a23, LjEbetaOS, MtEBOS) is an enzyme with systematic name geranyl-diphosphate diphosphate-lyase ((E)-β-ocimene-forming).^[1]^[2]^[3]^[4] This enzyme catalyses the following chemical reaction

geranyl diphosphate

\rightleftharpoons

(E)-β-ocimene + diphosphate

This enzyme is widely distributed in plants, which release β-ocimene when attacked by herbivorous insects.

References

^ Fäldt J, Arimura G, Gershenzon J, Takabayashi J, Bohlmann J (March 2003). "Functional identification of AtTPS03 as (E)-β-ocimene synthase: a monoterpene synthase catalyzing jasmonate- and wound-induced volatile formation in Arabidopsis thaliana". Planta. 216 (5): 745–51. doi: 10.1007/s00425-002-0924-0. PMID 12624761.
^ Dudareva N, Martin D, Kish CM, Kolosova N, Gorenstein N, Fäldt J, Miller B, Bohlmann J (May 2003). "(E)-βocimene and myrcene synthase genes of floral scent biosynthesis in snapdragon: function and expression of three terpene synthase genes of a new terpene synthase subfamily". The Plant Cell. 15 (5): 1227–41. doi: 10.1105/tpc.011015. PMC 153728. PMID 12724546.
^ Arimura G, Ozawa R, Kugimiya S, Takabayashi J, Bohlmann J (August 2004). "Herbivore-induced defense response in a model legume. Two-spotted spider mites induce emission of (E)-beta(E)-β-ocimene and transcript accumulation of (E)-β-ocimene synthase in Lotus japonicus". Plant Physiology. 135 (4): 1976–83. doi: 10.1104/pp.104.042929. PMC 520769. PMID 15310830.
^ Navia-Giné WG, Yuan JS, Mauromoustakos A, Murphy JB, Chen F, Korth KL (May 2009). "Medicago truncatula (E)-β-ocimene synthase is induced by insect herbivory with corresponding increases in emission of volatile ocimene". Plant Physiology and Biochemistry. 47 (5): 416–25. doi: 10.1016/j.plaphy.2009.01.008. PMC 2710562. PMID 19249223.

External links

(E)-beta-ocimene+synthase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

[1] Fäldt J, Arimura G, Gershenzon J, Takabayashi J, Bohlmann J (March 2003). "Functional identification of AtTPS03 as (E)-β-ocimene synthase: a monoterpene synthase catalyzing jasmonate- and wound-induced volatile formation in Arabidopsis thaliana". Planta. 216 (5): 745–51. doi: 10.1007/s00425-002-0924-0. PMID 12624761.

[2] Dudareva N, Martin D, Kish CM, Kolosova N, Gorenstein N, Fäldt J, Miller B, Bohlmann J (May 2003). "(E)-βocimene and myrcene synthase genes of floral scent biosynthesis in snapdragon: function and expression of three terpene synthase genes of a new terpene synthase subfamily". The Plant Cell. 15 (5): 1227–41. doi: 10.1105/tpc.011015. PMC 153728. PMID 12724546.

[3] Arimura G, Ozawa R, Kugimiya S, Takabayashi J, Bohlmann J (August 2004). "Herbivore-induced defense response in a model legume. Two-spotted spider mites induce emission of (E)-beta(E)-β-ocimene and transcript accumulation of (E)-β-ocimene synthase in Lotus japonicus". Plant Physiology. 135 (4): 1976–83. doi: 10.1104/pp.104.042929. PMC 520769. PMID 15310830.

[4] Navia-Giné WG, Yuan JS, Mauromoustakos A, Murphy JB, Chen F, Korth KL (May 2009). "Medicago truncatula (E)-β-ocimene synthase is induced by insect herbivory with corresponding increases in emission of volatile ocimene". Plant Physiology and Biochemistry. 47 (5): 416–25. doi: 10.1016/j.plaphy.2009.01.008. PMC 2710562. PMID 19249223.

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v t e Carbon–oxygen lyases ( EC 4.2) (primarily dehydratases)
4.2.1: Hydro-Lyases	Carbonic anhydrase Fumarase Aconitase Enolase Alpha Enolase 2 Enoyl-CoA hydratase/ 3-Hydroxyacyl ACP dehydrase Methylglutaconyl-CoA hydratase Tryptophan synthase Cystathionine beta synthase Porphobilinogen synthase 3-Isopropylmalate dehydratase Urocanase Uroporphyrinogen III synthase Nitrile hydratase
4.2.2: Acting on polysaccharides	Hyaluronate lyase Pectin lyase
4.2.3: Acting on phosphates	Threonine synthase
4.2.99: Other	Carboxymethyloxysuccinate lyase Hydroperoxide lyase

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases ( list) EC2 Transferases ( list) EC3 Hydrolases ( list) EC4 Lyases ( list) EC5 Isomerases ( list) EC6 Ligases ( list) EC7 Translocases ( list)