5-carboxymethyl-2-hydroxymuconate Delta-isomerase
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
| 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 / QuickGO | ||||||||
| |||||||||
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
- Garrido-Peritierra A, Cooper RA (July 1981). "Identification and purification of distinct isomerase and decarboxylase enzymes involved in the 4-hydroxyphenylacetate catabolic pathway of Escherichia coli". European Journal of Biochemistry. 117 (3): 581–4. doi:10.1111/j.1432-1033.1981.tb06377.x. PMID 7026235.
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