EC Number | Protein Variants | Comment | Organism |
---|---|---|---|
2.4.2.17 | D155A | slight increase in kcat, 3.9fold increase in KM-value for 5-phospho-alpha-D-ribose 1-diphosphate, 1.7fold increase in Km-value for ATP | Lactococcus lactis |
2.4.2.17 | K50A | 2.3fold increase in kcat, 51fold increase in KM-value for 5-phospho-alpha-D-ribose 1-diphosphate, 1.8fold increase in Km-value for ATP | Lactococcus lactis |
2.4.2.17 | K8A | 2.5fold decrease in kcat, 4.9fold increase in KM-value for 5-phospho-alpha-D-ribose 1-diphosphate, 3.1fold increase in Km-value for ATP | Lactococcus lactis |
2.4.2.17 | S140A | mutant is unstable, kinetic parameters can not be determined | Lactococcus lactis |
2.4.2.17 | T159A | 2.2fold decrease in kcat, 280fold increase in KM-value for 5-phospho-alpha-D-ribose 1-diphosphate, 2.5fold decrease in Km-value for ATP | Lactococcus lactis |
2.4.2.17 | T162A | 3.2fold decrease in kcat, 49fold increase in KM-value for 5-phospho-alpha-D-ribose 1-diphosphate, 2.6fold decrease in Km-value for ATP | Lactococcus lactis |
EC Number | Inhibitors | Comment | Organism | Structure |
---|---|---|---|---|
2.4.2.17 | AMP | competitive | Lactococcus lactis | |
2.4.2.17 | histidine | noncompetitive | Lactococcus lactis |
EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
2.4.2.17 | 0.0184 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, wild-type enzyme | Lactococcus lactis | |
2.4.2.17 | 0.0712 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme D155A | Lactococcus lactis | |
2.4.2.17 | 0.09 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme K8A | Lactococcus lactis | |
2.4.2.17 | 0.901 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme T162A | Lactococcus lactis | |
2.4.2.17 | 0.94 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme K50A | Lactococcus lactis | |
2.4.2.17 | 1.05 | - |
ATP | 25°C, pH 8, mutant enzyme T162A | Lactococcus lactis | |
2.4.2.17 | 1.07 | - |
ATP | 25°C, pH 8, mutant enzyme T159A | Lactococcus lactis | |
2.4.2.17 | 2.7 | - |
ATP | 25°C, pH 8, wild-type enzyme | Lactococcus lactis | |
2.4.2.17 | 4.7 | - |
ATP | 25°C, pH 8, mutant enzyme D155A | Lactococcus lactis | |
2.4.2.17 | 5 | - |
ATP | 25°C, pH 8, mutant enzyme K50A | Lactococcus lactis | |
2.4.2.17 | 5.15 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme T159A | Lactococcus lactis | |
2.4.2.17 | 8.45 | - |
ATP | 25°C, pH 8, mutant enzyme K8A | Lactococcus lactis |
EC Number | Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
2.4.2.17 | ATP + 5-phospho-alpha-D-ribose 1-diphosphate | Lactococcus lactis | first reaction of histidine biosynthesis | 1-(5-phospho-D-ribosyl)-ATP + diphosphate | - |
? |
EC Number | Organism | UniProt | Comment | Textmining |
---|---|---|---|---|
2.4.2.17 | Lactococcus lactis | - |
- |
- |
EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|---|
2.4.2.17 | ATP + 5-phospho-alpha-D-ribose 1-diphosphate | first reaction of histidine biosynthesis | Lactococcus lactis | 1-(5-phospho-D-ribosyl)-ATP + diphosphate | - |
? |
EC Number | Subunits | Comment | Organism |
---|---|---|---|
2.4.2.17 | octamer | four HisGS catalytic subunits related to periplasmic binding proteins and four HisZ regulatory subunits that resemble histidyl-tRNA synthetases | Lactococcus lactis |
EC Number | Synonyms | Comment | Organism |
---|---|---|---|
2.4.2.17 | ATP-PRT | - |
Lactococcus lactis |
EC Number | Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|---|
2.4.2.17 | additional information | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme K50A | Lactococcus lactis | |
2.4.2.17 | 0.84 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme T162A | Lactococcus lactis | |
2.4.2.17 | 1.07 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme K8A | Lactococcus lactis | |
2.4.2.17 | 1.2 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme T159A | Lactococcus lactis | |
2.4.2.17 | 2.7 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, wild-type enzyme | Lactococcus lactis | |
2.4.2.17 | 2.83 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme D155A | Lactococcus lactis | |
2.4.2.17 | 6.16 | - |
5-phospho-alpha-D-ribose 1-diphosphate | 25°C, pH 8, mutant enzyme K50A | Lactococcus lactis |
EC Number | Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|---|
2.4.2.17 | 0.0811 | - |
histidine | 25°C, pH 8 | Lactococcus lactis | |
2.4.2.17 | 1.44 | - |
AMP | 25°C, pH 8 | Lactococcus lactis |