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Literature summary for 3.2.2.1 extracted from
- Hydrolytic cleavage of purine ribunucleosides by extracts of Aspergillus terricola (1994), Acta Microbiol. Pol., 43, 297-304.
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| (NH4)2SO4 | - |
Aspergillus terricola |  |
| CoSO4 | - |
Aspergillus terricola | |
| CuSO4 | - |
Aspergillus terricola | |
| KCl | slight inhibition | Aspergillus terricola | |
| Li2SO4 | inhibits activity with adenosine and guanosine, slight inhibition of activity with inosine | Aspergillus terricola | |
| MnSO4 | inhibits activity with adenosine and guanosine, very slight inhibition of activity with inosine | Aspergillus terricola | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 10 | - |
Inosine | - |
Aspergillus terricola | |
| 20 | - |
adenosine | - |
Aspergillus terricola | |
| 22.2 | - |
guanosine | - |
Aspergillus terricola | |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| CaCl2 | slight activation | Aspergillus terricola | |
| MnCl2 | slight activation | Aspergillus terricola | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Aspergillus terricola | - |
- |
- |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| adenosine + H2O | - |
Aspergillus terricola | D-ribose + adenine | - |
? | |
| guanosine + H2O | - |
Aspergillus terricola | D-ribose + guanine | - |
? | |
| inosine + H2O | - |
Aspergillus terricola | hypoxanthine + D-ribose | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 50 | - |
- |
Aspergillus terricola |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 40 | 70 | 40°C: about 55% of maximal activity with inosine, about 45% of maximal activity with guanosine, about 40% of maximal activity with adenosine, 70°C: about 30% of maximal activity with inosine, about 35% of maximal activity with guanosine, about 25% of maximal activity with adenosine | Aspergillus terricola |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 60 | - |
15 min in absence of substrate, 54-86% loss of activity | Aspergillus terricola |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4 | - |
- |
Aspergillus terricola |
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Release 2023.1 (January 2023)
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