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Information on EC 5.5.1.14 - syn-copalyl-diphosphate synthase

for references in articles please use BRENDA:EC5.5.1.14
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IUBMB Comments
Requires a divalent metal ion, preferably Mg2+, for activity. This class II terpene synthase produces syn-copalyl diphosphate, a precursor of several rice phytoalexins, including oryzalexin S and momilactones A and B. Phytoalexins are diterpenoid secondary metabolites that are involved in the defense mechanism of the plant, and are produced in response to pathogen attack through the perception of elicitor signal molecules such as chitin oligosaccharide, or after exposure to UV irradiation. The enzyme is constitutively expressed in the roots of plants where one of its products, momilactone B, acts as an allelochemical (a molecule released into the environment to suppress the growth of neighbouring plants). In other tissues the enzyme is upregulated by conditions that stimulate the biosynthesis of phytoalexins.
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Word Map
  • 5.5.1.14
  • rice
  • phytoalexins
  • diterpenoids
  • sativa
  • diterpene
  • oryzae
  • momilactones
  • oscps4
  • phytocassanes
  • labdane-related
  • phytohormone
  • gibberellins
  • geranylgeranyl
  • oryzalexins
  • cyclization
  • ent-cpp
  • allelopathic
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
oscyc1, syn-copalyl diphosphate synthase, oscpssyn, syn-cpp synthase, syn-cdp synthase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
geranylgeranyl diphosphate = 9alpha-copalyl diphosphate
show the reaction diagram
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