3.6.1.28	5	8	about 55% of maximal activity at pH 5.0 and pH 8.0, membrane-associated enzyme	210006	
3.6.1.28	7	9.5	pH 7.0: about 60% of maximal activity, pH 9.5: about 75% of maximal activity	655738	
3.6.1.28	7.5	9.5	pH 7.5: about 30% of maximal activity, pH 9.5: about 50% of maximal activity	210020	
3.6.1.28	8	10	pH 8.0: about 60% of maximal activity, pH 10.0: about 75% of maximal activity	210006