5.1.3.14	-10°C, overnight, in a saturated (NH4)2SO4 solution, approximately 20% loss of activity	
5.1.3.14	-18°C, stable for several months	
5.1.3.14	-70°C, stable for several months	
5.1.3.14	2°C, several days, maintains well over 50% of its activity	
5.1.3.14	4°C, 80-90% loss of activity after 60 h	
5.1.3.14	4°C, in presence of 0.1 mM UDP and 1 mM DTT, 3 days, 20% loss of activity	
5.1.3.14	4°C, purified enzyme expressed in insect cells, stable	
5.1.3.14	4°C, purified enzyme is 80% pure, no further purification because it is unstable to freezing and has limited stability upon storage at 4°C