Biology:Tetrahydroxypteridine cycloisomerase
From HandWiki
| tetrahydroxypteridine cycloisomerase | |||||||||
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| Identifiers | |||||||||
| EC number | 5.5.1.3 | ||||||||
| CAS number | 37318-54-0 | ||||||||
| 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 | ||||||||
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In enzymology, a tetrahydroxypteridine cycloisomerase (EC 5.5.1.3) is an enzyme that catalyzes the chemical reaction
- tetrahydroxypteridine [math]\displaystyle{ \rightleftharpoons }[/math] xanthine-8-carboxylate
Hence, this enzyme has one substrate, tetrahydroxypteridine, and one product, xanthine-8-carboxylate.
This enzyme belongs to the family of isomerases, specifically the class of intramolecular lyases. The systematic name of this enzyme class is tetrahydroxypteridine lyase (isomerizing). It employs one cofactor, NAD+.
References
- "Tetraoxypteridine isomerase". The Journal of Biological Chemistry 239: 4272–9. December 1964. PMID 14247682.
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