6.3.4.2	-20°C, 30% glycerol, 100 mM 2-mercaptoethanol, 40% loss of activity after 4 weeks	
6.3.4.2	-20°C, purified enzyme is stable for months	
6.3.4.2	-20°C, stable for several months	
6.3.4.2	-80°C, 30% glycerol, 100 mM 2-mercaptoethanol, 65% of the original activity is retained after 4 weeks	
6.3.4.2	-80°C, stable for at least 6 months	
6.3.4.2	4°C, 30% glycerol, 100 mM 2-mercaptoethanol, 65% loss of activity after 4 weeks	
6.3.4.2	4°C, enzyme concentration 1-4 mg/ml, 20 mM sodium phosphate buffer, pH 7.2, 2 mM L-glutamine, 1 mM EDTA, 70 mM 2-mercaptoethanol, 20% glycerol, stable for 3 months