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EC Number
pH Minimum
pH Maximum
Commentary
Reference
3.2.1.153
4
6
over 80% of maximal activity within this range
753837
3.2.1.153
4
6.5
0.05M citrate phosphate buffer, 30°C, at pH 5.5 maximal activity of more than 300 microgram fructose per mg protein and hour, at pH 4.5-5.0 about 90% activity, at pH 4.25 and 6.0 about 75% activity, at pH 4.0 and 6.5 about 60% activity
700708
3.2.1.153
4
6.5
over 50% of maximal activity within this range
753837
3.2.1.153
4
7
over 40% of maximal activity within this range
753837
3.2.1.153
4.3
6.3
pH 4.3: about 60% of maximal activity, pH 6.3: about 50% of maximal activity
681133
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