Biology:Guanosine deaminase
From HandWiki
| guanosine deaminase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 3.5.4.15 | ||||||||
| CAS number | 9067-85-0 | ||||||||
| 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 guanosine deaminase (EC 3.5.4.15) is an enzyme that catalyzes the chemical reaction
- guanosine + H2O [math]\displaystyle{ \rightleftharpoons }[/math] xanthosine + NH3
Thus, the two substrates of this enzyme are guanosine and H2O, whereas its two products are xanthosine and NH3.
This enzyme belongs to the family of hydrolases, those acting on carbon-nitrogen bonds other than peptide bonds, specifically in cyclic amidines. The systematic name of this enzyme class is guanosine aminohydrolase. This enzyme is also called guanosine aminase.
References
- "Studies on the guanosine degrading system in bacterial cell. III Preparation and properties of guanosine deaminase". Agric. Biol. Chem. 33: 384–390. 1969. doi:10.1080/00021369.1969.10859324.
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