2.7.3.7 6 7.5 oH 6.0: about 80% of maximal activity, pH 7.5: about 65% of maximal activity, reaction with phosphoopheline 642494 2.7.3.7 7.5 9 pH 7.5: about 65% of maximal activity, pH 9.0: about 50% of maximal activity, phosphorylation of opheline 642494