KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
7.87 | - |
maltose | - |
Aspergillus niger |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
89000 | - |
x * 89000, glucoamylase, SDS-PAGE | Aspergillus niger |
131000 | - |
x * 131000, maltase, SDS-PAGE | Aspergillus niger |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
- |
- |
Penicillium brevicompactum | - |
- |
- |
Penicillium citrinum | - |
- |
- |
Saccharomyces cerevisiae | - |
type Malaga and type Palestina | - |
Schizosaccharomyces pombe | - |
- |
- |
Wickerhamomyces anomalus | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
culture medium | - |
Saccharomyces cerevisiae | - |
culture medium | - |
Aspergillus niger | - |
culture medium | - |
Schizosaccharomyces pombe | - |
culture medium | - |
Penicillium citrinum | - |
culture medium | - |
Wickerhamomyces anomalus | - |
culture medium | - |
Penicillium brevicompactum | - |
liver | - |
Aspergillus niger | - |
Storage Stability | Organism |
---|---|
-20°C, 15 days, 41% loss of maltase activity, 21% loss of glucoamylase activity | Aspergillus niger |
4°C, 15 days, 21% loss of maltase activity, 46% loss of glucoamylase activity | Aspergillus niger |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
maltose + H2O | - |
Saccharomyces cerevisiae | alpha-D-glucose + D-glucose | - |
? | |
maltose + H2O | - |
Aspergillus niger | alpha-D-glucose + D-glucose | - |
? | |
starch + H2O | - |
Aspergillus niger | alpha-D-glucose | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 131000, maltase, SDS-PAGE | Aspergillus niger |
? | x * 89000, glucoamylase, SDS-PAGE | Aspergillus niger |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
40 | - |
maltase activity | Aspergillus niger |
60 | - |
glucoamylase | Aspergillus niger |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
5 | 50 | 5°C: about 50% of maximal activity, 50°C: about 20% of maximal activity, maltase | Aspergillus niger |
5 | 80 | 5°C: about 50% of maximal activity, 80°C: about 40% of maximal activity, glucoamylase | Aspergillus niger |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
3 | 7 | pH 3.0: about 30% of maximal activity, pH 7.0: about 80% of maximal activity | Aspergillus niger |