3.4.24.80 | recombinant enzymes from Escherichia coli inclusion bodies by three steps of dialysis in buffer 1 containing 1.5 M urea, 50 mM Tris, pH 8, 150 mM NaCl, 5 mM CaCl2, 0.1 mM ZnCl2, 5 mM 2-mercaptoethanol, 1 mM 2-hydroxyethyl disulphide, 0.1% Brij 35 v/v, and 1 mM PMSF, or in buffer 2 containing 50 mM Tris, pH 8, 150 mM NaCl, 5 mM CaCl2, 0.05 mM ZnCl2, 5 mM 2-mercaptoethanol, 1 mM 2-hydroxyethyl disulphide, 0.1% Brij 35 v/v, and 1 mM PMSF, or in buffer 3 containing 50 mM Tris, pH 8.0, 150 mM NaCl, 5 mM CaCl2, 0.05 mM ZnCl2, 0.1% Brij 35 v/v, and 1 mM PMSF |
755435 |