2.8.2.20	5.5	6.5	pH 5.5: about 95% of maximal activity, pH 6.5: about 55% of maximal activity	657791	
2.8.2.20	5.7	6.8	about half-maximal activity at pH 5.7 and 6.8	645808	
2.8.2.20	6.2	7.2	sulfation of acidic amino acid polymer EAY, liver, about half-maximal activity at pH 6.2 and 7.2	645805