Biology:(+)-camphene synthase

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Short description: Class of enzymes
(+)-camphene synthase
Identifiers
EC number4.2.3.116
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

(+)-camphene synthase (EC 4.2.3.116) is an enzyme with systematic name geranyl-diphosphate diphosphate-lyase [cyclizing, (+)-camphene-forming].[1][2][3][4] This enzyme catalyses the following chemical reaction

geranyl diphosphate [math]\displaystyle{ \rightleftharpoons }[/math] (+)-camphene + diphosphate

Cyclase I of Salvia officinalis (sage) gives about equal parts (+)-camphene and (+)-alpha-pinene.

References

  1. "Pinene cyclases I and II. Two enzymes from sage (Salvia officinalis) which catalyze stereospecific cyclizations of geranyl pyrophosphate to monoterpene olefins of opposite configuration". The Journal of Biological Chemistry 259 (2): 740–8. January 1984. PMID 6693393. 
  2. "Biosynthesis of monoterpenes. Enantioselectivity in the enzymatic cyclization of (+)- and (–)-linalyl pyrophosphate to (+)- and (–)-pinene and (+)- and (–)-camphene". The Journal of Biological Chemistry 263 (21): 10063–71. July 1988. PMID 3392006. 
  3. "Monoterpene biosynthesis: isotope effects associated with bicyclic olefin formation catalyzed by pinene synthases from sage (Salvia officinalis)". Archives of Biochemistry and Biophysics 308 (2): 477–87. February 1994. doi:10.1006/abbi.1994.1068. PMID 8109978. 
  4. "Stereochemistry of the proton elimination in the formation of (+)- and (–)-alpha-pinene by monoterpene cyclases from sage (Salvia officinalis)". Archives of Biochemistry and Biophysics 308 (2): 488–96. February 1994. doi:10.1006/abbi.1994.1069. PMID 8109979. 

External links