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Information on EC 4.2.3.86 - 7-epi-alpha-selinene synthase
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The expected taxonomic range for this enzyme is: Vitis vinifera
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EC NUMBER 
COMMENTARY 
4.2.3.86
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RECOMMENDED NAME
GeneOntology No.
7-epi-alpha-selinene synthase
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
(2E,6E)-farnesyl diphosphate = 7-epi-alpha-selinene + diphosphate
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
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SYSTEMATIC NAME
IUBMB Comments
(2E,6E)-farnesyl-diphosphate diphosphate-lyase (7-epi-alpha-selinene-forming)
The recombinant enzyme from Vitis vinifera forms 49.5% (+)-valencene (cf. EC 4.2.3.73, valencene synthase) and 35.5% (-)-7-epi-alpha-selinene. Initial cyclization gives (+)-germacrene A in an enzyme bound form which is not released to the medium.
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ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
(2E,6E)-farnesyl diphosphate
7-epi-alpha-selinene + diphosphate
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-
-
?
(2E,6E)-farnesyl diphosphate
7-epi-alpha-selinene + diphosphate
the recombinant enzyme from Vitis vinifera forms 49.5% (+)-valencene (cf EC 4.2.3.73, valencene synthase) and 35.5% (-)-7-epi-alpha-selinene
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-
?
(2E,6E)-farnesyl diphosphate
7-epi-alpha-selinene + diphosphate
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-
-
?
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NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
(2E,6E)-farnesyl diphosphate
7-epi-alpha-selinene + diphosphate
Q6Q3H2
the recombinant enzyme from Vitis vinifera forms 49.5% (+)-valencene (cf EC 4.2.3.73, valencene synthase) and 35.5% (-)-7-epi-alpha-selinene
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-
?
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pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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pI VALUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
transcripts become detectable in September, almost two months after flowering, then increase and reach a maximum at the final sample date in early October when the fruit is at peak maturity
transcript levels are low in open pre-anthesis flowers, flowers after anthesis, or at early onset of fruit development
male flower parts of grapevines are responsible for sesquiterpenoid floral scent formation. Sesquiterpene volatiles, which are emitted with a light-dependent diurnal pattern early in the morning at prebloom and bloom, are localized to anthers and, more specifically, within the developing pollen grains
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LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
additional information
additional information
the enzyme localizes close to lipid bodies within the maturing microspore
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additional information
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the enzyme localizes close to lipid bodies within the maturing microspore
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-
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MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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SUBUNITS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
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Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
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Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
transcript levels are low in open pre-anthesis flowers, flowers after anthesis, or at early onset of fruit development
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LINKS TO OTHER DATABASES (specific for EC-Number 4.2.3.86)
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