CATH Classification

Domain Context

CATH Clusters

Superfamily Fumarylacetoacetase-like, C-terminal domain
Functional Family 2-keto-4-pentenoate hydratase

Enzyme Information

4.2.1.80
2-oxopent-4-enoate hydratase.
based on mapping to UniProt P77608
(S)-4-hydroxy-2-oxopentanoate = (2Z)-2-hydroxypenta-2,4-dienoate + H(2)O.
-!- The enzyme is involved in the catechol meta-cleavage pathway, a major mechanism for degradation of aromatic compounds. -!- Also acts, more slowly, on cis-2-oxohex-4-enoate, but not on the trans-isomer. -!- The enzyme was named when it was thought that the substrate is 2-oxopent-4-enoate. -!- However, it was later found that the actual substrate is its tautomer (2Z)-2-hydroxypenta-2,4-dienoate. -!- In some organisms the enzyme forms a complex with EC 4.1.1.77.

UniProtKB Entries (1)

P77608
MHPD_ECOLI
Escherichia coli K-12
2-keto-4-pentenoate hydratase

PDB Structure

PDB 1SV6
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal structure of 2-hydroxypentadienoic acid hydratase from Escherichia Coli
Fedorov, A.A., Fedorov, E.V., Sharp, A., Almo, S.C.
To be Published
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