KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
1.15 | - |
maltose | hydrolysis, alpha-glucosidase I | Rattus norvegicus | |
1.9 | - |
maltose | transglucosylation, alpha-glucosidase II | Rattus norvegicus | |
2.13 | - |
maltose | hydrolysis, alpha-glucosidase II | Rattus norvegicus | |
2.98 | - |
maltose | transglucosylation, alpha-glucosidase I | Rattus norvegicus | |
7.2 | - |
L-ascorbic acid alpha-D-glucoside | alpha-glucosidase I | Rattus norvegicus | |
9.2 | - |
L-ascorbic acid alpha-D-glucoside | alpha-glucosidase II | Rattus norvegicus |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
membrane | bound | Rattus norvegicus | 16020 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
270000 | - |
alpha-glucosidase II, gel filtration | Rattus norvegicus |
560000 | - |
alpha-glucosidase I, gel filtration | Rattus norvegicus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Rattus norvegicus | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Rattus norvegicus |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
intestine | small intestine | Rattus norvegicus | - |
intestine | microvillus | Rattus norvegicus | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
23.6 | - |
alpha-glucosidase II | Rattus norvegicus |
60.6 | - |
alpha-glucosidase I | Rattus norvegicus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-ascorbic acid alpha-D-glucoside | - |
Rattus norvegicus | maltose + L-ascorbic acid | - |
r | |
L-ascorbic acid alpha-D-glucoside + H2O | - |
Rattus norvegicus | maltose + L-ascorbic acid | - |
r | |
maltose + L-ascorbic acid | - |
Rattus norvegicus | L-ascorbic acid alpha-D-glucoside | - |
r |
Subunits | Comment | Organism |
---|---|---|
More | 3 bands detected by SDS-PAGE of alpha-glucosidase I: 130000 Da, 210000 Da and 330000 Da. A major band of 135000 Da and a minor band of 145000 Da is detected by SDS-PAGE of alpha-glucosidase II | Rattus norvegicus |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
- |
Rattus norvegicus |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4.5 | 5 | hydrolysis of maltose | Rattus norvegicus |
6 | 6.5 | formation of L-ascorbic acid alpha-glucoside | Rattus norvegicus |