1.5.1.7	2-mercaptoethanol, 1 mM, stabilizes	
1.5.1.7	bovine serum albumin stabilizes	
1.5.1.7	high salt concentration stabilizes	
1.5.1.7	KCl, above 0.1 M stablizes	
1.5.1.7	unstable at enzyme concentration below 0.1 mg protein/ml