Protein Variants | Comment | Organism |
---|---|---|
N153A | the mutant shows 6% of wild type catalase activity and exhibits an overall peroxidase activity similar with wild type KatG | Synechocystis sp. |
N153D | the mutant shows 16.5% of wild type catalase activity and exhibits an overall peroxidase activity similar with wild type KatG | Synechocystis sp. |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
cyanide | - |
Synechocystis sp. |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
1.7 | - |
H2O2 | catalase activity, mutant enzyme N153A, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
2.3 | - |
H2O2 | catalase activity, mutant enzyme N153D, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
4.1 | - |
H2O2 | catalase activity, wild type enzyme, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Synechocystis sp. | - |
- |
- |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
0.55 | - |
peroxidase activity, using guaiacol as substrate, mutant enzyme N153A, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
0.6 | - |
peroxidase activity, using guaiacol as substrate, mutant enzyme N153D, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
0.6 | - |
peroxidase activity, using guaiacol as substrate, wild type enzyme, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
1.9 | - |
peroxidase activity, using o-dianisidine as substrate, mutant enzyme N153A, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
3.8 | - |
peroxidase activity, using o-dianisidine as substrate, wild type enzyme, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
4.3 | - |
peroxidase activity, using o-dianisidine as substrate, mutant enzyme N153D, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
guaiacol + H2O2 | - |
Synechocystis sp. | tetraguaiacol + H2O | - |
? | |
H2O2 | - |
Synechocystis sp. | O2 + H2O | - |
? | |
o-dianisidine + H2O2 | - |
Synechocystis sp. | oxidized o-dianisidine + H2O | - |
? |
Synonyms | Comment | Organism |
---|---|---|
KatG | - |
Synechocystis sp. |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
200 | - |
H2O2 | catalase activity, mutant enzyme N153A, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
580 | - |
H2O2 | catalase activity, mutant enzyme N153D, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
3500 | - |
H2O2 | catalase activity, wild type enzyme, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
- |
Synechocystis sp. |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
heme | - |
Synechocystis sp. |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
120 | - |
H2O2 | catalase activity, mutant enzyme N153A, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
250 | - |
H2O2 | catalase activity, mutant enzyme N153D, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. | |
850 | - |
H2O2 | catalase activity, wild type enzyme, in 50 mM phosphate buffer, pH 7.0, and 30°C | Synechocystis sp. |