3.4.11.B4 6.3 8.5 pH 6.3: about 20% of maximal activity, pH 8.5: about 55% of maximal activity 719112 3.4.11.B4 6.3 8.5 pH 6.3: about 20% of maximal activity, pH 8.5: about 70% of maximal activity 719112 3.4.11.B4 7 8.3 pH 6.5: about 20% of maximal activity, pH 7.0: about 90% of maximal activity, pH 8.3: about 50% of maximal activity 719480