Activating Compound | Comment | Organism | Structure |
---|---|---|---|
dithiothreitol | 146.27% activity at 10 mM | Psychrobacter sp. ANT206 | |
GSH | 118.3% activity at 10 mM | Psychrobacter sp. ANT206 | |
NaCl | the enzyme exhibits the highest activity (136.4%) at 1.0M NaCl | Psychrobacter sp. ANT206 | |
PEG 20000 | 113.3% activity at 5 mM | Psychrobacter sp. ANT206 | |
Tween 20 | 120.5% activity at 0.2% (v/v) | Psychrobacter sp. ANT206 |
Cloned (Comment) | Organism |
---|---|
expressed in Escherichia coli BL21 cells | Psychrobacter sp. ANT206 |
General Stability | Organism |
---|---|
the enzyme maintains more than 60% of its initial activity after incubation at 3.5 M NaCl | Psychrobacter sp. ANT206 |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
2-mercaptoethanol | 73.3% residual activity at 0.2% (v/v) | Psychrobacter sp. ANT206 | |
Cu2+ | 35% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
EDTA | 56.7% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Fe2+ | 78.9% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Fe3+ | 40% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Ni2+ | 46.7% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
SDS | 16.7% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Thiourea | 35.7% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Triton X-100 | 39.6% residual activity at 0.2% (v/v) | Psychrobacter sp. ANT206 | |
Urea | 42.8% residual activity at 10 mM | Psychrobacter sp. ANT206 | |
Zn2+ | 49.8% residual activity at 10 mM | Psychrobacter sp. ANT206 |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.00182 | - |
nitrobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
0.00202 | - |
4-nitrophenol | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
0.0043 | - |
4-nitrochlorobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
0.00513 | - |
2-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
0.00567 | - |
2-chloro-6-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
0.00592 | - |
3-bromo-4-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mn2+ | 161.7% activity at 10 mM | Psychrobacter sp. ANT206 |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
nitrobenzene + 3 NADPH + 3 H+ | Psychrobacter sp. ANT206 | - |
aniline + 3 NADP+ + 2 H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Psychrobacter sp. ANT206 | - |
- |
- |
Purification (Comment) | Organism |
---|---|
Ni-NTA column chromatography | Psychrobacter sp. ANT206 |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
51.59 | - |
purified enzyme, at pH 7.0 and 25°C | Psychrobacter sp. ANT206 |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2-chloro-6-nitrotoluene + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | 3-chloro-2-methylaniline + 3 NADP+ + 2 H2O | - |
? | |
2-nitrotoluene + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | 2-toluidine + 3 NADP+ + 2 H2O | - |
? | |
3-bromo-4-nitrotoluene + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | 2-bromo-4-methylaniline + 3 NADP+ + 2 H2O | - |
? | |
4-nitrochlorobenzene + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | 4-chloroaniline + 3 NADP+ + 2 H2O | - |
? | |
4-nitrophenol + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | 4-aminophenol + 3 NADP+ + 2 H2O | - |
? | |
nitrobenzene + 3 NADH + 3 H+ | 30% activity compared to 3 NADPH | Psychrobacter sp. ANT206 | aniline + 3 NAD+ + 2 H2O | - |
? | |
nitrobenzene + 3 NADPH + 3 H+ | - |
Psychrobacter sp. ANT206 | aniline + 3 NADP+ + 2 H2O | - |
? | |
nitrobenzene + 3 NADPH + 3 H+ | 100% activity with 3 NADPH | Psychrobacter sp. ANT206 | aniline + 3 NADP+ + 2 H2O | - |
? | |
nitrobenzene + FMN | 80% activity compared to 3 NADPH | Psychrobacter sp. ANT206 | aniline + ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 28830, calculated from amino acid sequence | Psychrobacter sp. ANT206 |
Synonyms | Comment | Organism |
---|---|---|
NTR | - |
Psychrobacter sp. ANT206 |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
- |
Psychrobacter sp. ANT206 |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
- |
40 | the enzyme maintains 46.9% of the optimum activity at 0°C and show more than 50% activity between 10 and 45°C | Psychrobacter sp. ANT206 |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | 50 | the enzyme is very stable at 30°C, and the enzyme activity sharply reduces as the temperature increases. The half-life of the enzyme is 40 min at 50°C, approximately | Psychrobacter sp. ANT206 |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
64.25 | - |
3-bromo-4-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
66.82 | - |
2-chloro-6-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
70.45 | - |
2-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
87.14 | - |
4-nitrochlorobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
223.59 | - |
4-nitrophenol | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
256.54 | - |
nitrobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | - |
- |
Psychrobacter sp. ANT206 |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
5 | 9 | more than 56% activity between pH 4.0 and 8.0 | Psychrobacter sp. ANT206 |
pH Stability | pH Stability Maximum | Comment | Organism |
---|---|---|---|
4 | 9 | the enzyme retains good stability at pH 4.0-9.0 after the incubation at 25°C for 30 min | Psychrobacter sp. ANT206 |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
FMN | - |
Psychrobacter sp. ANT206 | |
NADH | - |
Psychrobacter sp. ANT206 | |
NADPH | best cofactor | Psychrobacter sp. ANT206 |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Psychrobacter sp. ANT206 | calculated from amino acid sequence | - |
6.9 |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
10850 | - |
3-bromo-4-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
11780 | - |
2-chloro-6-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
13730 | - |
2-nitrotoluene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
20270 | - |
4-nitrochlorobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
110400 | - |
4-nitrophenol | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 | |
140960 | - |
nitrobenzene | at pH 7.0 and 25°C | Psychrobacter sp. ANT206 |