General Stability | Organism |
---|---|
UMP stabilizes the enzyme | Acholeplasma laidlawii |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0042 | - |
Uracil | - |
Acholeplasma laidlawii | |
0.066 | - |
5-phospho-alpha-D-ribose 1-diphosphate | - |
Acholeplasma laidlawii |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Acholeplasma laidlawii | |
Mg2+ | optimal concentration: 5 mM | Acholeplasma laidlawii |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
80000 | - |
gel filtration | Acholeplasma laidlawii |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
uracil + 5-phospho-alpha-D-ribose 1-diphosphate | Acholeplasma laidlawii | incorporation of uracil into nucleotides | UMP + diphosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Acholeplasma laidlawii | - |
- |
- |
Purification (Comment) | Organism |
---|---|
partial | Acholeplasma laidlawii |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
UMP + diphosphate = uracil + 5-phospho-alpha-D-ribose 1-diphosphate | ping-pong reaction mechanism | Acholeplasma laidlawii |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.22 | - |
partially purified enzyme | Acholeplasma laidlawii |
Storage Stability | Organism |
---|---|
4°C, rapid loss of activity when stored in presence of Mg2+ | Acholeplasma laidlawii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
uracil + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Acholeplasma laidlawii | UMP + diphosphate | - |
? | |
uracil + 5-phospho-alpha-D-ribose 1-diphosphate | incorporation of uracil into nucleotides | Acholeplasma laidlawii | UMP + diphosphate | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Acholeplasma laidlawii |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | 8 | - |
Acholeplasma laidlawii |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
7.2 | 8 | pH 7.2: about 50% of activity maximum, pH 8.0: about 70% of activity maximum | Acholeplasma laidlawii |