1.1.1.116 6.5 9 20% of maximal activity at pH 6.5 and pH 9.0, pH profile 668641 1.1.1.116 8.5 10.5 about 75% of maximal activity at pH 8.5 and 10.5 285769 1.1.1.116 9.4 11.8 about 60% of maximal activity at pH 9.4 and 11.8 285767