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Literature summary extracted from
- Analogues of azepinomycin as inhibitors of guanase (1998), Nucleosides Nucleotides, 17, 1141-1151.
Application
| EC Number | Application | Comment | Organism |
|---|---|---|---|
| 3.5.4.3 | medicine | enzyme has been implicated in cancer, liver disease, saturine gout, psoriasis and autoimmune disease, histochemical method for demonstration of guanase should be useful clinically, guanase activity increases significantly in lung and gastric cancer tissues or in patients with liver diseases like hepatitis, guanase is a biochemical indicator of rejection in liver transplant recipients, serum enzyme activity is the most sensitive indicator of liver disease, inhibition of guanase has beneficial implications in cancer chemotherapy, an inhibitor as chemotherapeutic agent selectively inhibit the growth of rapidly proliferating cancerous cells via depletion of the purine nucleotide pool | Homo sapiens |
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.5.4.3 | azepinomycin | naturally occuring guanase inhibitor, antitumor antibiotic | Oryctolagus cuniculus |  |
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.5.4.3 | 0.012 | - |
guanine | - |
Oryctolagus cuniculus | |
Natural Substrates/ Products (Substrates)
| EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.5.4.3 | guanine + H2O | Homo sapiens | - |
xanthine + NH3 | - |
? | |
| 3.5.4.3 | guanine + H2O | Oryctolagus cuniculus | - |
xanthine + NH3 | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.5.4.3 | Homo sapiens | - |
human | - |
| 3.5.4.3 | Oryctolagus cuniculus | - |
rabbit | - |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 3.5.4.3 | liver | - |
Homo sapiens | - |
| 3.5.4.3 | liver | - |
Oryctolagus cuniculus | - |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.5.4.3 | guanine + H2O | - |
Homo sapiens | xanthine + NH3 | - |
? | |
| 3.5.4.3 | guanine + H2O | - |
Oryctolagus cuniculus | xanthine + NH3 | - |
? | |
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