1.1.3.5	30	50	purified native enzyme, pH 7.2, 10 min, completely stable at	743600	
1.1.3.5	50	60	not stable above	287635	
1.1.3.5	60	70	purified native enzyme, pH 7.2, 10 min, 50% activity is retained	743600	
1.1.3.5	80	-	purified native enzyme, pH 7.2, 10 min, inactivation	743600