5.5.1.14: syn-copalyl-diphosphate synthase

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For detailed information about syn-copalyl-diphosphate synthase, go to the full flat file.

Word Map on EC 5.5.1.14

5.5.1.14

diterpene

phytoalexins

sativa

diterpenoids

oryzae

phytocassanes

oscps4

momilactones

oryzalexins

allelopathic

labdane-related

gibberellins

phytohormone

ent-cpp

geranylgeranyl

cyclization

Reaction

Synonyms

CPS4, OsCPSsyn, OsCyc1, syn-CDP synthase, syn-copalyl diphosphate lyase (decyclizing), syn-copalyl diphosphate synthase, syn-CPP synthase

ECTree

5 Isomerases

5.5 Intramolecular lyases

5.5.1 Intramolecular lyases (only sub-subclass identified to date)

5.5.1.14 syn-copalyl-diphosphate synthase

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6	AA Sequence
1	CAS Registry Number
3	Cloned(Commentary)
4	General Information
2	Localization
3	Natural Substrates/ Products (Substrates)
4	Organism
5	Pathway
1	Protein Variants
2	Purification (Commentary)
3	Reaction
2	Reaction Type
4	Reference
2	Source Tissue
3	Substrates and Products (Substrate)
8	Synonyms
1	Systematic Name

Systematic Name

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Systematic Name on EC 5.5.1.14 - syn-copalyl-diphosphate synthase

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9alpha-copalyl-diphosphate lyase (decyclizing)

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.