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Pig Pepsin, MP Biomedicals

Supplier: E. Becker & Co. GmbH
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0210259850 0210259880 0210259890 0210259820
IC10259850EA 136.6 USD InStock
IC10259850 IC10259880 IC10259890 75875-594
Pig Pepsin, MP Biomedicals
Enzymes
Pepsin, an acid protease, contains a proteolytic enzyme

  • Presentation: Off-White Lyophilized Powder
  • Extinction Coefficient (E1%): E1%280 = 14.7
  • Isoelectric point (pI): pH 1.0
  • pH: 2.5 to 4.5 (2% aq solution)
  • Freely soluble in water; dissolves readily in 0.01 M HCl (0.5 mg/mL - clear, colorless solution); practically insoluble in alcohol, chloroform or ether.

Pepsin is a peptidase used to digest proteins and is commonly used in the preparation of Fab fragments from antibodies. Pepsin, from porcine gastric mucosa, has been used to hydrolyze dry cervical samples in mice.

Pepsin hydrolyzes peptide bonds, not amide or ester linkages. Pepsin cleaves peptides with an aromatic acid on either side of the peptide bond. Sulfur-containing amino acids increase susceptibility to hydrolysis when they are close to the peptide bond. Pepsin preferentially cleaves at the carboxyl side of phenylalanine and leucine and at the carboxyl side of glutamic acid residues. Cleaves Phe-Val, Gln-His, Glu-Ala, Ala-Leu, Leu-Tyr, Tyr-Leu, Gly-Phe, Phe-Phe and Phe-Tyr bonds in the β chain of insulin. Pepsin is the major proteolytic enzyme produced in the stomach. It digests proteins through the cleavage of interior peptide linkages.

Pepsin contains the "cathepsin" component which has milk curdling activity. It has a broad range of substrate activity and demonstrates an esterase acitivity. It generally attacks peptide bonds.


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