Activating Compound | Comment | Organism | Structure |
---|---|---|---|
kirromycin | enhances activity of mutant enzyme G13A (maximal stimulation at 0.04 mM), does not stimulate intrinsic GTPase of SsEF-1alpha triggered by 3.6 M NaCl | Saccharolobus solfataricus |
Protein Variants | Comment | Organism |
---|---|---|
G13A | compared to wild-type enzyme the mutant shows a reduced rate of Phe polymerization and a reduced intrinsic GTPase activity that is stimulated by high concentrations of NaCl. Mutant enzyme shows an increased affinity for GTP and GDP. The temperature inducing a 50% denaturation of the mutant enzyme is 5°C lower than that of the wild-type enzyme | Saccharolobus solfataricus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
GDP | - |
Saccharolobus solfataricus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0027 | - |
GTP | 60°C, wild-type enzyme | Saccharolobus solfataricus | |
0.0046 | - |
GTP | 60°C, mutant enzyme G13A | Saccharolobus solfataricus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Saccharolobus solfataricus | - |
- |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
GTP + H2O | - |
Saccharolobus solfataricus | GDP + phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
elongation factor 1alpha | - |
Saccharolobus solfataricus |
SsEF-1alpha | - |
Saccharolobus solfataricus |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
80 | - |
mutant G13A | Saccharolobus solfataricus |
90 | - |
wild-type enzyme | Saccharolobus solfataricus |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
70 | 95 | 70°C: about 60% of maximal activity, 95°C: about 90% of maximal activity, wild-type enzyme | Saccharolobus solfataricus |
70 | 86 | about 60% of maximal activity at 70°C and at 86°C, mutant enzyme G13A | Saccharolobus solfataricus |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
87 | - |
half-denaturation of mutant enzyme G13A | Saccharolobus solfataricus |
91 | - |
10 min, 50% inactivation of GDP binding ability, mutant enzyme G13A | Saccharolobus solfataricus |
92 | - |
half-denaturation of wild-type enzyme | Saccharolobus solfataricus |
94 | - |
10 min, 50% inactivation of GDP binding ability, wild-type enzyme | Saccharolobus solfataricus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.00167 | - |
GTP | 60°C, mutant enzyme G13A | Saccharolobus solfataricus | |
0.013 | - |
GTP | 60°C, wild-type enzyme | Saccharolobus solfataricus |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0008 | - |
GDP | 60°C, wild-type enzyme | Saccharolobus solfataricus | |
0.0042 | - |
GDP | 60°C, mutant enzyme G13A | Saccharolobus solfataricus |