Storage Buffer: 10mM Tris-HCl (pH 8.0), 1mM MgCl2, 0.1mM ZnCl2, 50mM KCl, 50% (v/v) glycerol.
Source: Calf intestinal mucosa.
QC Tests: Activity, endonuclease, DNase, RNase, blue/white cloning assay.
Unit Definition: One unit is defined as the amount of enzyme required to catalyze the hydrolysis of 1μmol of 4-nitrophenyl phosphate per minute at 37°C in 1M diethanolamine, 10.9mM 4-nitrophenyl phosphate, 0.5mM MgCl2 (pH 9.8 at 25°C).