2.8.1.1	5.5	10.5	pH 5.5: about 45% of maximal activity, pH 10.5: about 95% of maximal activity, pH 11.0: about 15% of maximal activity	662068	
2.8.1.1	6	11	pH 6.0: about 75% of activity maximum, pH 11.0: about 70% of activity maximum	645513	
2.8.1.1	7	-	no residual activity below	673600