SOURCE. Porcine pancreas.
SPECIFICATIONS.Chromatographically purified, salt-free, lyophilized, soluble, white powder.
MW; 34.5 KD, pH optimum 7.7 in 0.1 M Tris-HCL buffer containing 0.1 M NaCl (54). MW�35,000.
Trypsin and chymotrypsin impurities removed by affinity chromatography.
Carboxypeptidase A, less than 0.1%.
Store at 5°C. Stable 1 to 2 years at 5°C.
SPECIFIC ACTIVITY. 130 - 150 units per mg of protein.
One unit will hydrolyze 1 µmole of hippuryl-L-arginine per minute at pH 7.7 at 25°C.