General Stability | Organism |
---|---|
enzyme immobilization in a cellulose film preserves 97% of the initial enzyme activity. The enzyme maintains above 80% of its original activity after 10 consecutive reuses of the film | Debaryomyces hansenii |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.47 | - |
4-nitrophenyl alpha-D-galactopyranoside | immobilized enzyme, at pH 5.0 and 40°C | Debaryomyces hansenii | |
9.13 | - |
stachyose | immobilized enzyme, at pH 5.0 and 40°C | Debaryomyces hansenii | |
20.1 | - |
raffinose | immobilized enzyme, at pH 5.0 and 40°C | Debaryomyces hansenii |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Debaryomyces hansenii | - |
- |
- |
Debaryomyces hansenii UFV-1 | - |
- |
- |
Purification (Comment) | Organism |
---|---|
partial purification by DEAE-Sepharose column chromatography | Debaryomyces hansenii |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
3.03 | - |
lyophilized extract, at pH 5.0 and 40°C | Debaryomyces hansenii |
87.52 | - |
after 28.88fold purification, at pH 5.0 and 40°C | Debaryomyces hansenii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
4-nitrophenyl alpha-D-galactopyranoside + H2O | - |
Debaryomyces hansenii | 4-nitrophenol + alpha-D-galactopyranose | - |
? | |
4-nitrophenyl alpha-D-galactopyranoside + H2O | - |
Debaryomyces hansenii UFV-1 | 4-nitrophenol + alpha-D-galactopyranose | - |
? | |
raffinose + H2O | best substrate | Debaryomyces hansenii | sucrose + D-galactose | - |
? | |
raffinose + H2O | best substrate | Debaryomyces hansenii UFV-1 | sucrose + D-galactose | - |
? | |
stachyose + H2O | - |
Debaryomyces hansenii | 2 D-galactose + sucrose | - |
? | |
stachyose + H2O | - |
Debaryomyces hansenii UFV-1 | 2 D-galactose + sucrose | - |
? |
Synonyms | Comment | Organism |
---|---|---|
Alpha-D-galactoside galactohydrolase | - |
Debaryomyces hansenii |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | - |
free enzyme | Debaryomyces hansenii |
85 | - |
immobilized enzyme | Debaryomyces hansenii |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
65 | 85 | about 65% of the maximal activity of the immobilized enzyme is detected between 65 and 85°C. At temperatures above 90°C, a sharp decrease in the enzymatic activity is observed | Debaryomyces hansenii |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
45 | 95 | the immobilized enzyme retains 100% of its activity when incubated at 45 and 65°C for 24 h. The half-lifes of the immobilized enzyme at 45, 65, 85 and 95°C are 4.4 h, 4.2 h, 3.9 h and 0.12 h, respectively. The enzyme has 75% of its activity after pre-incubation at 85°C for 30 h | Debaryomyces hansenii |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
4 | - |
immobilized enzyme | Debaryomyces hansenii |
5 | - |
free enzyme | Debaryomyces hansenii |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
4 | 6.5 | over 60% activity of the immobilized enzyme is determined between 4.0 and 6.5 | Debaryomyces hansenii |