General Stability | Organism |
---|---|
lyophilization of purified or partially purified enzyme, slight loss of activity | Escherichia coli |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
aromatic aldehydes | e.g.: benzaldehyde, weak | Escherichia coli | |
Borate | - |
Escherichia coli | |
formaldehyde | - |
Escherichia coli | |
Glutaraldehyde | - |
Escherichia coli | |
iodoacetate | - |
Escherichia coli | |
K+ | - |
Escherichia coli | |
additional information | not: chelating agents | Escherichia coli | |
N-ethylmaleimide | - |
Escherichia coli | |
Na+ | - |
Escherichia coli | |
NH4+ | - |
Escherichia coli | |
p-hydroxymercuribenzoate | - |
Escherichia coli | |
Tris salts | - |
Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.09 | - |
NADP+ | - |
Escherichia coli | |
0.2 | - |
L-aspartate 4-semialdehyde | - |
Escherichia coli | |
6 | - |
HAsO42- | - |
Escherichia coli | |
9 | - |
phosphate | - |
Escherichia coli |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
70000 | - |
gel filtration | Escherichia coli |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
K-12 | - |
Purification (Comment) | Organism |
---|---|
K-12, using ammonium sulfate precipitation and column chromatography on Sephadex G-200 and DEAE-Sephadex A-50 | Escherichia coli |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
120 | - |
- |
Escherichia coli |
Storage Stability | Organism |
---|---|
frozen or on ice, after dialysis, 1 month stable | Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-aspartate 4-semialdehyde + HasO42- + NADP+ | - |
Escherichia coli | ? | - |
r | |
L-aspartate 4-semialdehyde + phosphate + NADP+ | - |
Escherichia coli | L-4-aspartyl phosphate + NADPH | - |
? | |
additional information | maximum velocity with HAsO42- is 0.4 times that with HPO42- | Escherichia coli | ? | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
25 | - |
assay at | Escherichia coli |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
50 | - |
20 min, crude extract, 20% loss of activity | Escherichia coli |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
9 | - |
- |
Escherichia coli |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
additional information | NAD+: 0.1% or less the rate of reaction with NADP+ | Escherichia coli | |
NADP+ | - |
Escherichia coli |