Purine imidazole-ring cyclase
From Infogalactic: the planetary knowledge core
| purine imidazole-ring cyclase | |||||||||
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| Identifiers | |||||||||
| EC number | 4.3.2.4 | ||||||||
| CAS number | Template:CAS | ||||||||
| 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 purine imidazole-ring cyclase (EC 4.3.2.4) is an enzyme that catalyzes the chemical reaction
- DNA 4,6-diamino-5-formamidopyrimidine
DNA adenine + H2O
Hence, this enzyme has one substrate, DNA 4,6-diamino-5-formamidopyrimidine, and two products, DNA adenine and H2O.
This enzyme belongs to the family of lyases, specifically amidine lyases. The systematic name of this enzyme class is DNA-4,6-diamino-5-formamidopyrimidine C8-N9-lyase (cyclizing DNA-adenine-forming). Other names in common use include DNA-4,6-diamino-5-formamidopyrimidine 8-C,9-N-lyase (cyclizing), DNA-4,6-diamino-5-formamidopyrimidine 8-C,9-N-lyase (cyclizing, and DNA-adenine-forming).
References
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