Information on EC 3.2.1.66 - quercitrinase

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The expected taxonomic range for this enzyme is: Aspergillus flavus

EC NUMBER
COMMENTARY
3.2.1.66
-
RECOMMENDED NAME
GeneOntology No.
quercitrinase
REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
quercitrin + H2O = L-rhamnose + quercetin
show the reaction diagram
-
-
-
-
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hydrolysis of O-glycosyl bond
-
-
-
-
SYSTEMATIC NAME
IUBMB Comments
quercitrin 3-L-rhamnohydrolase
Quercitrin is quercetin 3-L-rhamnoside.
CAS REGISTRY NUMBER
COMMENTARY
37288-47-4
-
ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
synthesized by only a few members of the Aspergillus flavus group
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-
Manually annotated by BRENDA team
SUBSTRATE
PRODUCT                      
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
LITERATURE
(Substrate)
COMMENTARY
(Product)
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
myricitrin + H2O
L-rhamnose + myricetin
show the reaction diagram
-
myricitrin is identical with myricetin-3-L-rhamnoside
-
?
quercitrin + H2O
quercetin + L-rhamnose
show the reaction diagram
-
quercitrin is identical with quercetin-3-L-rhamnoside, quercitrin is identical with quercetin 3-L-rhamnoside, growth on quercitrin as carbon source
-
?
robinin + H2O
rhamnose + kaempferol-3-robinoside
show the reaction diagram
-
robinin is identical with kaempferol-3-robinoside-7-rhamnoside
-
?
NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
LITERATURE
(Substrate)
COMMENTARY
(Product)
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
quercitrin + H2O
quercetin + L-rhamnose
show the reaction diagram
-
quercitrin is identical with quercetin 3-L-rhamnoside, growth on quercitrin as carbon source
-
?
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
pH RANGE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
-
78% of the total activity
-
Manually annotated by BRENDA team
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
35
-
stable above
136772
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
-17°C, several weeks, little loss of activity
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