Crystallization (Comment) | Organism |
---|---|
extraction, 2 gel elutions, 5 crystallizations | Photinus pyralis |
General Stability | Organism |
---|---|
stability in crude solutions varies | Photinus pyralis |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
arsenate | lowers the flash height and extends the light emission for a given amount of ATP | Photinus pyralis | |
ATP | - |
Photinus pyralis | |
diphosphate | - |
Photinus pyralis | |
Luciferin | - |
Photinus pyralis |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | activator with optimum concentration at 0.1 mM | Photinus pyralis |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
50000 | - |
- |
Photinus pyralis |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Photinus pyralis | - |
- |
- |
Purification (Comment) | Organism |
---|---|
several chromatographic and non chromatographic methods | Photinus pyralis |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
whole body | - |
Photinus pyralis | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
additional information | - |
28000 light units/mg after crystallization | Photinus pyralis |
Storage Stability | Organism |
---|---|
4°C, pH 7.5, ammonium sulfate, EDTA, as 10 mg protein/ml slurry, several months | Photinus pyralis |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
Photinus luciferin + O2 + ATP | - |
Photinus pyralis | oxidized Photinus luciferin + CO2 + H2O + AMP + diphosphate + hv | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 2 * 50000 not separated | Photinus pyralis |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | - |
- |
Photinus pyralis |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
7.5 | 8 | pH up to 8 red light occurs instead of yellow-green light | Photinus pyralis |