3.4.13.5	5	9	less than 10% of maximal activity at pH 5.0 and 9.0	36081	
3.4.13.5	5.2	8.5	50% of maximal activity at pH 5.2 and at pH 8.5	35025	
3.4.13.5	6	8	pH 6.0: about 35% of maximal activity, pH 8.0: about 55% of maximal activity	36079	
3.4.13.5	6.5	7.8	activity is sharply reduced below pH 6.5 and above pH 7.8	36080