EC Number   |
pH Stability |
pH Stability Maximum |
Reference |
|---|
    4.2.1.84 | 4 |
9 |
the enzyme retains over 50% activity at pH 5.0 and pH 8.8, but loses activity below pH 4.0 or above pH 9.0 |
701026 |
| 4.2.1.84 | 4 |
12 |
nitrile hydratase cross-linked enzyme aggregates are stable at pH values 2-4 units below the optimum (pH 8.0) and still have a useful activity under these conditions, retains about 20% activity at pH 4, 40% activity at pH 5.0, 65% activity at pH 6.0, 90% activity at pH 7.0, 9.0 and 10.0, 85% activity at pH 12.0 |
701585 |
| 4.2.1.84 | 4.3 |
10.4 |
at pH value of 4.3 and 10.4 enzyme activities are reduced to 24 and 25% of the maximum activity, respectively |
706917 |
| 4.2.1.84 | 5 |
10 |
the pH below 5 and above 10 drastically decreases the activity of purified NHase |
703995 |
| 4.2.1.84 | 6 |
9 |
20°C, 60 min, stable in this range, rapid loss of activity below pH 6.0 and above pH 9.0 |
648439 |
| 4.2.1.84 | 6 |
9 |
25°C, 10 min, stable in this range, rapid loss of activity below pH 6.0 and above pH 9.0 |
648439 |
| 4.2.1.84 | 6 |
9 |
93% activity is retained after storage at pH 6.0-9.0 for 12 h |
749286 |
| 4.2.1.84 | 6.5 |
8 |
25°C, 90 min, stable |
648429 |
| 4.2.1.84 | 6.5 |
9.5 |
- |
648450 |
| 4.2.1.84 | 7 |
8 |
highly unstable below pH 7.0 |
648425 |
