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Literature summary extracted from
- Characterization of beta-galactosidase from a special strain of Aspergillus oryzae (1976), J. Biochem., 80, 1195-1200.
General Stability
| EC Number | General Stability | Organism |
|---|---|---|
| 3.2.1.23 | loss of activity on freezing | Aspergillus oryzae |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.23 | Aspergillus oryzae | - |
RT 102, FERM-P1680 | - |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 3.2.1.23 | partial | Aspergillus oryzae |
Specific Activity [micromol/min/mg]
| EC Number | Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.23 | additional information | - |
- |
Aspergillus oryzae |
Storage Stability
| EC Number | Storage Stability | Organism |
|---|---|---|
| 3.2.1.23 | 4°C, stable for several months | Aspergillus oryzae |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.23 | asialo alpha1-acid glycoprotein + H2O | - |
Aspergillus oryzae | beta-D-galactose + ? | - |
? |  |
| 3.2.1.23 | glycoasparagines + H2O | hydrolysis of beta-galactosyl linkages in urinary glycoasparagines | Aspergillus oryzae | galactose + ? | - |
? | |
| 3.2.1.23 | lactose + H2O | - |
Aspergillus oryzae | D-glucose + D-galactose | - |
? | |
| 3.2.1.23 | o-nitrophenyl-beta-D-galactoside + H2O | - |
Aspergillus oryzae | o-nitrophenol + beta-D-galactose | - |
? | |
| 3.2.1.23 | phenyl-alpha-D-galactoside + H2O | 14% of the activity with o-nitrophenyl-beta-D-galactoside | Aspergillus oryzae | phenol + alpha-D-galactose | - |
? | |
| 3.2.1.23 | phenyl-beta-D-galactoside + H2O | 11% of the activity with o-nitrophenyl-beta-D-galactoside | Aspergillus oryzae | phenol + beta-D-galactose | - |
? | |
Temperature Stability [°C]
| EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.23 | 37 | - |
pH 4.5, stable for several days | Aspergillus oryzae |
pH Stability
| EC Number | pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.23 | 4.5 | - |
37°C, stable for several days | Aspergillus oryzae |
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Release 2023.1 (January 2023)
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