3.5.99.6 additional information - effect of pH on homotropic co-operativity in the native and modified deaminases 648238 3.5.99.6 additional information - pH dependence of the reactivity of the active site histidine to diethyl dicarbonate 648239 3.5.99.6 6 8.5 pH 6.0: about 25% of maximal activity, pH 8.5: about 60% of maximal activity 648215 3.5.99.6 6 9 the pH dependency of NagB with a standard concentration of GlcNAc-6P, the kcat does not vary between pH 6.0 and pH 9.0. The Hill coefficient changes substantially with an optimum at pH 7.7 (Hill coefficient of 2.6), dropping below pH 7.0 or above pH 8.8. Results obtained at different pH values (pH 8.0, 7.8, 7.5, and 6.8) are in agreement with this statement 757101 3.5.99.6 6 10 pH-profile, overview 671576 3.5.99.6 6.2 8 pH 6.2: about 25% of maximal activity, pH 8.0: about 55% of maximal activity, in presence of glucose 6-phosphate 648222 3.5.99.6 6.8 8.3 70% of maximal activity at pH 6.8, maximal activity at pH 8.3 684638 3.5.99.6 7 9.5 pH 7.0: about 55% of maximal activity, pH 9.5: about 74% of maximal activity 648217