Biology:4-carboxymuconolactone decarboxylase
From HandWiki
Short description: Class of enzymes
| 4-carboxymuconolactone decarboxylase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.1.1.44 | ||||||||
| CAS number | 37289-46-6 | ||||||||
| 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 | ||||||||
| |||||||||
The enzyme 4-carboxymuconolactone decarboxylase (EC 4.1.1.44) catalyzes the chemical reaction
- 2-carboxy-2,5-dihydro-5-oxofuran-2-acetate [math]\displaystyle{ \rightleftharpoons }[/math] 4,5-dihydro-5-oxofuran-2-acetate + 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 2-carboxy-2,5-dihydro-5-oxofuran-2-acetate carboxy-lyase (4,5-dihydro-5-oxofuran-2-acetate-forming). Other names in common use include gamma-4-carboxymuconolactone decarboxylase,[citation needed] and 4-carboxymuconolactone carboxy-lyase.[citation needed] This enzyme participates in benzoate degradation via hydroxylation.
Structural studies
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 2AF7.
References
- "The conversion of catechol and protocatechuate to beta-ketoadipate by Pseudomonas putida. 3. Enzymes of the catechol pathway". The Journal of Biological Chemistry 241 (16): 3795–9. August 1966. PMID 5330966.
- "Conversion of catechol and protocatechuate to beta-ketoadipate (Pseudomonas putida)". Methods Enzymol. 17A: 529–549. 1970. doi:10.1016/0076-6879(71)17237-0.
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