2.8.2.6	46	-	no loss of activity during 10 min at pH 9.2, 30% loss at pH 7.3, 34% loss at pH 5.0	643827	
2.8.2.6	55	-	almost completely inactivated	643827	
2.8.2.6	58.5	-	complete loss of activity at pH 5.0, 85% activity retained at pH 9.2	643827