Activating Compound | Comment | Organism | Structure |
---|---|---|---|
ATP | maximum activity at 10 mM | Synechococcus elongatus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
ADP | inhibitor of complex formation with PII protein | Synechococcus elongatus | |
arginine | feedback inhibition | Synechococcus elongatus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | formation of complex between enzyme and signal transduction protein PII decreases Km-value by a factor of 10 and increases Vmax 4fold | Synechococcus elongatus | |
2.7 | - |
N-acetyl-L-glutamate | pH 7.5, complex of enzyme and PII protein | Synechococcus elongatus | |
27.4 | - |
N-acetyl-L-glutamate | pH 7.5, free enzyme | Synechococcus elongatus |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required, maximum activity above 20 mM | Synechococcus elongatus |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
32000 | - |
6 * 32000, calculated | Synechococcus elongatus |
180000 | - |
sedimentation anaylsis | Synechococcus elongatus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Synechococcus elongatus | - |
strain PCC 7942, recombinant protein with His6-tag | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
3.3 | - |
pH 7.5, free enzyme | Synechococcus elongatus |
13.3 | - |
pH 7.5, complex of enzyme and PII protein | Synechococcus elongatus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + N-acetyl-L-glutamate | - |
Synechococcus elongatus | ADP + N-acetyl-L-glutamate 5-phosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
hexamer | 6 * 32000, calculated | Synechococcus elongatus |
More | enzyme hexamer forms a complex with PII signaling protein trimer | Synechococcus elongatus |
More | in vivo complex of enzyme with signal transduction protein PII | Synechococcus elongatus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | - |
both free enzyme and complex with protein PII | Synechococcus elongatus |