5-carboxymethyl-2-hydroxymuconate Delta-isomerase

5-carboxymethyl-2-hydroxymuconate delta-isomerase
Identifiers
EC number 5.3.3.10
CAS number 79079-05-3
Databases
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

In enzymology, a 5-carboxymethyl-2-hydroxymuconate Delta-isomerase (EC 5.3.3.10) is an enzyme that catalyzes the chemical reaction

5-carboxymethyl-2-hydroxymuconate 5-carboxy-2-oxohept-3-enedioate

Hence, this enzyme has one substrate, 5-carboxymethyl-2-hydroxymuconate, and one product, 5-carboxy-2-oxohept-3-enedioate.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases transposing C=C bonds. The systematic name of this enzyme class is 5-carboxymethyl-2-hydroxymuconate Delta2,Delta4-2-oxo,Delta3-isomerase. This enzyme participates in tyrosine metabolism and benzoate degradation via hydroxylation.

Structural studies

As of late 2007, 4 structures have been solved for this class of enzymes, with PDB accession codes 1GTT, 1I7O, 1WZO, and 2DFU.

References

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