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EC Number
pH Minimum
pH Maximum
Commentary
Reference
1.4.3.2
3
-
complete loss of activity below
763454
1.4.3.2
3.5
12
half maximal activity at pH 3.5 and 12
391787
1.4.3.2
4
11
L-phenylalanine as substrate, pH 4: ca. 10% of the activity, pH 11: ca. 60% of the activity
651026
1.4.3.2
4.4
9.6
-
695208
1.4.3.2
4.5
8.5
pH-profile, overview
697333
1.4.3.2
4.5
10.5
-
391824
1.4.3.2
4.5
10.5
L-alanine as substrate, pH 4.5, ca. 3% of the activity, pH 10.5, ca. 30% of the activity
651026
1.4.3.2
5
10.4
the enzyme shows a slight decrease in its activity at pH 5.0 and 9.6. Actually, the enzyme activity decreases by about 50% of its initial activity at the optimum at acidic pH (3.0) and by less than 3% at alkaline one (pH 10.4)
743253
1.4.3.2
5.5
8.5
activity assay range
711874
1.4.3.2
6
7.5
-
724964
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