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Information on EC 4.2.3.33 - stemar-13-ene synthase

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EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.3 Acting on phosphates
                4.2.3.33 stemar-13-ene synthase
IUBMB Comments
This diterpene cyclase produces stemar-13-ene, a putative precursor of the rice phytoalexin oryzalexin S. 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.
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Word Map
  • 4.2.3.33
  • phytoalexins
  • diterpenoids
  • diterpene
  • oryzalexins
  • syn-copalyl
  • sativa
  • momilactones
  • oscps4
  • gibberellin
  • phytocassanes
  • labdane-related
  • phytohormone
  • indica
  • geranylgeranyl
  • chitin
  • suspension-cultured
  • elicitors
  • ent-copalyl
The expected taxonomic range for this enzyme is: Oryza
Synonyms
osdtc2, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
9alpha-copalyl diphosphate = stemar-13-ene + diphosphate
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