Information on EC 4.2.3.111 - (-)-alpha-terpineol synthase

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The expected taxonomic range for this enzyme is: Vitis vinifera

EC NUMBER
COMMENTARY hide
4.2.3.111
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RECOMMENDED NAME
GeneOntology No.
(-)-alpha-terpineol synthase
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REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
geranyl diphosphate + H2O = (-)-alpha-terpineol + diphosphate
show the reaction diagram
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
Biosynthesis of secondary metabolites
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Metabolic pathways
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Monoterpenoid biosynthesis
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SYSTEMATIC NAME
IUBMB Comments
geranyl-diphosphate diphosphate-lyase [cyclizing, (-)-alpha-terpineol-forming]
The enzyme has been characterized from Vitis vinifera (grape). Also forms some 1,8-cineole and traces of other monoterpenoids.
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
geranyl diphosphate
(-)-alpha-terpineol + diphosphate
show the reaction diagram
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products are 50.1% (-)-alpha-terpineol, 11.8% 1,8-cineole, 8.5% (+)-beta-pinene, plus lower amounts of additional monoterpenes
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?
additional information
?
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pI VALUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
5.9
calculated
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
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strongest signals with RNA from flower buds and strongly reduced transcript levels in pre- and postanthesis open flowers and in set flowers at early fruit onset
Manually annotated by BRENDA team
additional information
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expression appears restricted to flowers
Manually annotated by BRENDA team
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
expression in Escherichia coli