General Stability | Organism |
---|---|
ATP protects the enzyme completely for 30 min at 37°C in crude extract | Rattus norvegicus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.052 | - |
uridine | 37°C, adult liver uridine kinase | Rattus norvegicus | |
0.37 | - |
ATP | 37°C, foetal liver uridine kinase | Rattus norvegicus | |
0.37 | - |
ATP | ATP in form of MgATP2- | Rattus norvegicus | |
0.4 | - |
uridine | 37°C, foetal liver uridine kinase | Rattus norvegicus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required for full activity | Rattus norvegicus | |
Mg2+ | optimal Mg2+ to ATP ratio at 12 mM ATP: 1.25 | Rattus norvegicus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rattus norvegicus | - |
2 forms of liver uridine kinase in foetus | - |
Purification (Comment) | Organism |
---|---|
streptomycin, ammonium sulfate, DEAE-cellulose | Rattus norvegicus |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
liver | foetal and adult | Rattus norvegicus | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.06 | - |
uridine kinase from adult animal | Rattus norvegicus |
57.49 | - |
uridine kinase from foetal animal | Rattus norvegicus |
Storage Stability | Organism |
---|---|
-20°C, several weeks, no loss of activity | Rattus norvegicus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + uridine | - |
Rattus norvegicus | ADP + UMP | - |
? |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
additional information | - |
ATP protects foetal liver uridine kinase completely for 30 min at 37°C in crude extract | Rattus norvegicus |
45 | - |
foetal liver uridine kinase, 50% loss of activity after 10 min, adult liver uridine kinase, no loss of activity after 10 min | Rattus norvegicus |