5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase
| 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.1.1.68 | ||||||||
| 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 | ||||||||
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In enzymology, a 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase (EC 4.1.1.68) is an enzyme that catalyzes the chemical reaction
- 5-oxopent-3-ene-1,2,5-tricarboxylate 2-oxohept-3-enedioate + CO2
Hence, this enzyme has one substrate, 5-oxopent-3-ene-1,2,5-tricarboxylate, and two products, 2-oxohept-3-enedioate and CO2.
This enzyme belongs to the family of lyases, specifically the carboxy-lyases, which cleave carbon-carbon bonds. The systematic name of this enzyme class is 5-oxopent-3-ene-1,2,5-tricarboxylate carboxy-lyase (2-oxohept-3-enedioate-forming). Other names in common use include 5-carboxymethyl-2-oxo-hex-3-ene-1,6-dioate decarboxylase, and 5-oxopent-3-ene-1,2,5-tricarboxylate carboxy-lyase. This enzyme participates in tyrosine metabolism.
Structural studies
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1I7O.
References
- Garrido-Pertierra A; Cooper RA (1981). "Identification and purification of distinct isomerase and decarboxylase enzymes involved in the 4-hydroxyphenylacetate pathway of Escherichia coli". Eur. J. Biochem. 117 (3): 581–584. doi:10.1111/j.1432-1033.1981.tb06377.x. PMID 7026235.