>=2,500 units per mg dry weight. One Unit releases 0.001 A280 as TCA soluble hydrolysis products from denatured hemoglobin per minute at 37°C.
Digestion of antibodies; Preparation of collagen for cosmeceutical purposes; Assessment of digestibility of proteins in food chemistry; Subculture of viable mammary epithelial cells.
Store at 4°C.
Pepsin is the principal proteolytic enzyme of vertebrate gastric juice. Its inactive precursor form, pepsinogen, is produced in stomach mucosa. The minor pepsins are designated B, C, and D, while the major component is A.