Alpha-copaene synthase

Alpha-copaene synthase (EC 4.2.3.133) is an enzyme with systematic name (2E,6E)-farnesyl-diphosphate diphosphate-lyase (cyclizing, alpha-copaene-forming).^[1]^[2] This enzyme catalyses the following chemical reaction

(2E,6E)-farnesyl diphosphate

\rightleftharpoons

(-)-alpha-copaene + diphosphate

This enzyme is isolated from Helianthus annuus (sunflower).

References

↑ Gopfert, J.C.; Macnevin, G.; Ro, D.K.; Spring, O. (2009). "Identification, functional characterization and developmental regulation of sesquiterpene synthases from sunflower capitate glandular trichomes". BMC Plant Biol. 9: #86–86. PMC 2715020 . PMID 19580670. doi:10.1186/1471-2229-9-86.
↑ Xie, X.; Kirby, J.; Keasling, J.D. (2012). "Functional characterization of four sesquiterpene synthases from Ricinus communis (castor bean)". Phytochemistry. 78: 20–28. PMID 22459969. doi:10.1016/j.phytochem.2012.02.022.

Alpha-copaene synthase at the US National Library of Medicine Medical Subject Headings (MeSH)

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
4.2.3: Acting on phosphates	Threonine synthase
4.2.99: Other	Carboxymethyloxysuccinate lyase

Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor
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)

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