2.7.1.113	-20°C, ammonium sulfate precipitate in 100 mM M Tris-acetate buffer, pH 8, 0.025 M 2-mercaptoethanol, at least 4 months	
2.7.1.113	-20°C, more than 1 mg/ml protein, 50% glycerol, 1 year, no loss of activity	
2.7.1.113	-20°C, purified recombinant enzyme at 1 mg/ml, Tris-HCl, pH 7.8, 50% v/v glycerol, at least 1 year without loss of activity	
2.7.1.113	-80°C, stable for at least 1 year	
2.7.1.113	0°C, the diluted enzyme is highly unstable, but in presence of 1 mg/ml bovine serum albumin, the diluted enzyme is stable for months	
2.7.1.113	4°C, 1 week, 50% loss of activity