2.5.1.43	4	-	overnight in 50 mM Tris, 1 mM EDTA, 3 mM dithiothreitol, pH 8.7 with HCl, 90% loss of activity	639734	
2.5.1.43	5.5	-	overnight in 50 mM Tris, 1 mM EDTA, 3 mM dithiothreitol, pH 8.7 with HCl, 80% loss of activity	639734	
2.5.1.43	7	-	activity is almost completely recovered after overnight exposure in 50 mM Tris, 1 mM EDTA, 3 mM dithiothreitol, pH 8.7 with HCl	639734