Purine imidazole-ring cyclase
- Purine imidazole-ring cyclase
In enzymology, a purine imidazole-ring cyclase (EC number|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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External links
::"The CAS registry number for this enzyme class is CAS registry|95990-28-6."
Gene Ontology (GO) codes
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