| tetrahydroxypteridine cycloisomerase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 5.5.1.3 | ||||||||
| CAS no. | 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 | ||||||||
| |||||||||
In enzymology, a tetrahydroxypteridine cycloisomerase (EC 5.5.1.3) is an enzyme that catalyzes the chemical reaction
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+.
Isomerases are a general class of enzymes that convert a molecule from one isomer to another. Isomerases facilitate intramolecular rearrangements in which bonds are broken and formed. The general form of such a reaction is as follows:
Purine metabolism refers to the metabolic pathways to synthesize and break down purines that are present in many organisms.
In enzymology, a 3-carboxy-cis,cis-muconate cycloisomerase is an enzyme that catalyzes the chemical reaction
In enzymology, a 5-(carboxyamino)imidazole ribonucleotide mutase is an enzyme that catalyzes the chemical reaction
In enzymology, an α-pinene-oxide decyclase is an enzyme that catalyzes the chemical reaction
In enzymology, a carboxy-cis,cis-muconate cyclase is an enzyme that catalyzes the chemical reaction
In enzymology, a chalcone isomerase is an enzyme that catalyzes the chemical reaction
In enzymology, a chloromuconate cycloisomerase is an enzyme that catalyzes the chemical reaction
In enzymology, a copalyl diphosphate synthase is an enzyme that catalyzes the chemical reaction
In enzymology, a cycloeucalenol cycloisomerase is an enzyme that catalyzes the chemical reaction
In enzymology, a dichloromuconate cycloisomerase is an enzyme that catalyzes the chemical reaction
In enzymology, a L-dopachrome isomerase is an enzyme that catalyzes the chemical reaction
The enzyme 3-hydroxy-2-methylpyridine-4,5-dicarboxylate 4-decarboxylase (EC 4.1.1.51) catalyzes the chemical reaction
The enzyme 5-oxopent-3-ene-1,2,5-tricarboxylate decarboxylase (EC 4.1.1.68) catalyzes the chemical reaction
The enzyme indole-3-glycerol-phosphate synthase (IGPS) (EC 4.1.1.48) catalyzes the chemical reaction
The enzyme uracil-5-carboxylate decarboxylase (EC 4.1.1.66) catalyzes the chemical reaction
The enzyme hydroperoxide dehydratase (EC 4.2.1.92) catalyzes the chemical reaction
The enzyme trans-L-3-hydroxyproline dehydratase (EC 4.2.1.77) catalyzes the chemical reaction
2-hydroxychromene-2-carboxylate isomerase is an enzyme with systematic name 2-hydroxy-2H-chromene-2-carboxylate---(3E)-4-(2-hydroxyphenyl)-2-oxobut-3-enoate isomerase. This enzyme catalyses the following chemical reaction