(−)-camphene synthase

(−)-camphene synthase (EC 4.2.3.117, CS) is an enzyme with systematic name geranyl-diphosphate diphosphate-lyase [cyclizing, (−)-camphene-forming].^[1]^[2]^[3]^[4] This enzyme catalyses the following chemical reaction

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(−)-Camphene is the major product in Abies grandis (grand fir) with traces of other monoterpenoids.

References

^ Bohlmann J, Phillips M, Ramachandiran V, Katoh S, Croteau R (August 1999). "cDNA cloning, characterization, and functional expression of four new monoterpene synthase members of the Tpsd gene family from grand fir (Abies grandis)". Archives of Biochemistry and Biophysics. 368 (2): 232–43. doi:10.1006/abbi.1999.1332. PMID 10441373.
^ Huber DP, Philippe RN, Godard KA, Sturrock RN, Bohlmann J (June 2005). "Characterization of four terpene synthase cDNAs from methyl jasmonate-induced Douglas-fir, Pseudotsuga menziesii". Phytochemistry. 66 (12): 1427–39. doi:10.1016/j.phytochem.2005.04.030. PMID 15921711.
^ Hyatt DC, Croteau R (July 2005). "Mutational analysis of a monoterpene synthase reaction: altered catalysis through directed mutagenesis of (–)-pinene synthase from Abies grandis". Archives of Biochemistry and Biophysics. 439 (2): 222–33. doi:10.1016/j.abb.2005.05.017. PMID 15978541.
^ Falara V, Akhtar TA, Nguyen TT, Spyropoulou EA, Bleeker PM, Schauvinhold I, Matsuba Y, Bonini ME, Schilmiller AL, Last RL, Schuurink RC, Pichersky E (October 2011). "The tomato terpene synthase gene family". Plant Physiology. 157 (2): 770–89. doi:10.1104/pp.111.179648. PMC 3192577. PMID 21813655.

(−)-camphene+synthase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

v t 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 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)