Inhibitors | Comment | Organism | Structure |
---|---|---|---|
Cu2+ | - |
Escherichia coli | |
EDTA | - |
Escherichia coli | |
Hg2+ | - |
Escherichia coli | |
iodoacetic acid | - |
Escherichia coli | |
K+ | 30-50 mM | Escherichia coli | |
UO22+ | - |
Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
7.6 | - |
maltose | - |
Escherichia coli |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Ca2+ | 10-50 mM, stimulates | Escherichia coli | |
K+ | 10 mM, stimulates | Escherichia coli | |
Mg2+ | 10 mM, stimulates | Escherichia coli |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
144500 | - |
gel filtration | Escherichia coli |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Escherichia coli | induced by maltose but repressed by alpha-D-glucose and fructose | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
enterophatogenic strains produce significantly more maltase than non-pathogenic strains | - |
Purification (Comment) | Organism |
---|---|
partial | Escherichia coli |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
additional information | - |
- |
Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
maltose + H2O | - |
Escherichia coli | alpha-D-glucose + D-glucose | - |
? | |
additional information | induced by maltose but repressed by alpha-D-glucose and fructose | Escherichia coli | ? | - |
? | |
starch + H2O | - |
Escherichia coli | alpha-D-glucose | - |
? |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | - |
- |
Escherichia coli |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
20 | 50 | 20°C: about 35% of maximal activity, 50°C: about 25% of maximal activity | Escherichia coli |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
1 min, complete loss of activity | Escherichia coli |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6.5 | - |
30°C | Escherichia coli |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
4 | 8 | pH 4.0: about 35% of maximal activity, pH 8.0: about 60% of maximal activity | Escherichia coli |