Information on EC 5.3.2.8 - 4-oxalomesaconate tautomerase

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The enzyme appears in viruses and cellular organisms

EC NUMBER
COMMENTARY hide
5.3.2.8
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RECOMMENDED NAME
GeneOntology No.
4-oxalomesaconate tautomerase
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REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
(1E)-4-oxobut-1-ene-1,2,4-tricarboxylate = (1E,3E)-4-hydroxybuta-1,3-diene-1,2,4-tricarboxylate
show the reaction diagram
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
Benzoate degradation
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gallate degradation I
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gallate degradation II
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methylgallate degradation
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Microbial metabolism in diverse environments
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protocatechuate degradation I (meta-cleavage pathway)
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syringate degradation
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SYSTEMATIC NAME
IUBMB Comments
4-oxalomesaconate keto-enol-isomerase
This enzyme has been characterized from the bacterium Pseudomonas putida KT2440 and is involved in the degradation pathway of syringate and gallate. It catalyses the interconversion of two of the tautomers of 4-oxalomesaconate, a reaction that can also occur spontaneously.
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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Manually annotated by BRENDA team
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
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disruption of the galD gene does not prevent growth of the Pseudomonas putida KTGALdgalD mutant strain in 5 mM gallic acid, but the mutant strain grows poorly at gallic acid concentrations lower than 2 mM
physiological function
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a functional galD gene is important for an efficient gallic acid degradation
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
(2E)-2-(2-methylprop-2-en-1-ylidene)-4-oxopentanedioic acid
(2Z,4E)-2-hydroxy-4-(2-methylprop-2-en-1-ylidene)pent-2-enedioic acid
show the reaction diagram
4-chloronitrobenzene
?
show the reaction diagram
NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
(2E)-2-(2-methylprop-2-en-1-ylidene)-4-oxopentanedioic acid
(2Z,4E)-2-hydroxy-4-(2-methylprop-2-en-1-ylidene)pent-2-enedioic acid
show the reaction diagram
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
37600
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calculated from amino acid sequence
Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli BL21(DE3) cells
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