Pepsin is a non-specific endopeptidase active at pH 1.0 to 3.0, with an optimum activity at pH 1.0. Pepsin protease cleaves preferentially at tyrosines and phenylalanine (aromatic residues), although it generally does not cleave at alanine, glycine or valine residues. ProteoChemís Pepsin has a minimum activity of 2,500 units per mg.
CAS Number: 9001-75-6
Alternative Name: Pepsin A