3.2.1.33	4.6	9	inactive below pH 4.6 and above pH 9	171384	
3.2.1.33	5	6.5	pH 5.0: about 20% of maximal activity, pH 6.5: about 85% of maximal activity, pH 7.0: about 15% of maximal activity	684818	
3.2.1.33	5	7	pH 5.0: about 25% of maximal activity, pH 5.5: about 70% of maximal activity, pH 6.5: about 60% of maximal activity, pH 7.0: about 20% of maximal activity	664389	
3.2.1.33	5	8	-	171368, 171379	
3.2.1.33	5	8	pH 5.0: about 25% of maximum activity, pH 8.0: about 40% of maximum activity	171374