CATH Classification

Domain Context

CATH Clusters

Superfamily Macrophage Migration Inhibitory Factor
Functional Family

Enzyme Information

5.3.2.6
2-hydroxymuconate tautomerase.
based on mapping to UniProt Q01468
(2Z,4E)-2-hydroxyhexa-2,4-dienedioate = (3E)-2-oxohex-3-enedioate.
-!- 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.

UniProtKB Entries (1)

Q01468
4OT1_PSEPU
Pseudomonas putida
2-hydroxymuconate tautomerase

PDB Structure

PDB 2FM7
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Evolution of enzymatic activity in the tautomerase superfamily: mechanistic and structural consequences of the L8R mutation in 4-oxalocrotonate tautomerase
Poelarends, G.J., Almrud, J.J., Serrano, H., Darty, J.E., Johnson, W.H., Hackert, M.L., Whitman, C.P.
Biochemistry