Information on EC 5.5.1.3 - Tetrahydroxypteridine cycloisomerase

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The expected taxonomic range for this enzyme is: Alcaligenes faecalis

EC NUMBER
COMMENTARY hide
5.5.1.3
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RECOMMENDED NAME
GeneOntology No.
Tetrahydroxypteridine cycloisomerase
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
Tetrahydroxypteridine = xanthine-8-carboxylate
show the reaction diagram
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-
-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
elimination/addition
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-
-
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SYSTEMATIC NAME
IUBMB Comments
Tetrahydroxypteridine lyase (isomerizing)
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CAS REGISTRY NUMBER
COMMENTARY hide
37318-54-0
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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
1,3,8-trimethyltetraoxypteridine
1,3,9-trimethylxanthine-8-carboxylate
show the reaction diagram
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-
-
-
Tetraoxypteridine
Xanthine-8-carboxylate
show the reaction diagram
additional information
?
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METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
-
no metal ion required
INHIBITORS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
2-mercaptoethanol
-
-
hydroxylamine
-
-
p-chloromercuribenzoate
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Phosphate buffer
-
-
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SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0.433
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substrate tetraoxypteridine
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
STORAGE STABILITY
ORGANISM
UNIPROT
LITERATURE
frozen, several days
-
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE