From Anabaena variabilis UW
Activity: 1,000 to 10,000 units/ml.
Supplied in 50 mM KCl, 10 mM Tris-HCl pH 8.0, 0.1 mM EDTA, 1 mM dithiothreitol, 200 μg/ml acetylated BSA, and 50% glycerol.