1.7.7.1	-20°C, 10% glycerol, 10 mM 2-mercaptoethanol, stable for several weeks	
1.7.7.1	-20°C, 50% glycerol, for at least 6 months	
1.7.7.1	-20°C, several months	
1.7.7.1	-24°C, 30% loss of activity within 4 months	
1.7.7.1	4°C, 0.1 M potassium phosphate buffer, pH 7.7, 1 week	
1.7.7.1	4°C, 1 week	
1.7.7.1	4°C, 200 mM Tris-HCl buffer, pH 7.5, 200 mM NaCl, 10% glycerol, for at least 1 month	
1.7.7.1	4°C, 30% loss of activity within 3 weeks