KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.001 | - |
hypoxanthine | with 6-mercaptopurine | Bos taurus | |
0.5 | - |
guanine | - |
Bos taurus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Bos taurus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Bos taurus | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Bos taurus |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
liver | - |
Bos taurus | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.39 | - |
purified enzyme, reverse reaction | Bos taurus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
6-mercaptopurine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Bos taurus | 6-mercaptopurine ribotide + diphosphate | - |
? | |
guanine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Bos taurus | GMP + diphosphate | - |
r | |
hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate | equilibrium lies far in direction of IMP formation | Bos taurus | IMP + diphosphate | - |
r | |
hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate | 2 assay methods | Bos taurus | IMP + diphosphate | - |
r | |
additional information | no substrates: 5-formamido-4-imidazolecarboxamide, uric acid, 8-azaguanine, 2,6-diaminopurine, orotic acid, phosphate | Bos taurus | ? | - |
? | |
additional information | no substrate: adenine | Bos taurus | ? | - |
? | |
xanthine + 5-phospho-alpha-D-ribose 1-diphosphate | no activity | Bos taurus | XMP + diphosphate | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
38 | - |
assay at | Bos taurus |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | 65 | stable | Bos taurus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.4 | - |
assay at | Bos taurus |