2.7.11.7	freeze-thawing inactivates	640785, 640786	
2.7.11.7	loses about 25% of activity for every freeze-thaw cycle	640780	
2.7.11.7	phosphorylated enzyme is somewhat less stable than unphosphorylated enzyme	640780	
2.7.11.7	very unstable if exposed to low salt, i.e. 50 mM KCl or less, in the absence of sucrose	640776