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ENZYME

ENZYME entry: EC 5.3.2.6

PURL: https://purl.expasy.org/enzyme/EC/5.3.2.6
Accepted Name
2-hydroxymuconate tautomerase
Alternative Name(s)
4-oxalocrotonate isomerase
4-oxalocrotonate tautomerase
Reaction catalysed
(2Z,4E)-2-hydroxyhexa-2,4-dienedioate = (3E)-2-oxohex-3-enedioate
Comment(s)
  • Involved in the meta-cleavage pathway for the degradation of phenols, modified phenols and catechols.
  • The enol form (2Z,4E)-2-hydroxyhexa-2,4-dienedioate is produced as part of this pathway and is converted to the keto form (3E)-2-oxohex- 3-enedioate by the enzyme.
  • Another keto form, (4E)-2-oxohex-4-enedioate (4-oxalocrotonate), was originally thought to be produced by the enzyme but later shown to be produced non-enzymatically.
Cross-references
BRENDA5.3.2.6
EC2PDB5.3.2.6
ExplorEnz5.3.2.6
KEGG Ligand Database for Enzyme Nomenclature5.3.2.6
IUBMB Enzyme Nomenclature5.3.2.6
MEDLINEFind literature relating to 5.3.2.6
MetaCyc5.3.2.6
Rhea expert-curated reactions5.3.2.6
UniProtKB/Swiss-Prot
Q01468, 4OT1_PSEPUQ8RQD2, 4OT2_PSEPUQ9Z431, 4OT3_PSEPU
Q93JW0, 4OT4_PSEPUP70994, 4OT_BACSUQ9RHM8, 4OT_COMTE
Q8KRR5, 4OT_PSEFLP49172, 4OT_PSEUFQ9ZI54, 4OT_STUST

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 5.3.2.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 5.3.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 5.-.-.-