Bz-Ala-Arg is a dipeptide. Bz-Ala-Arg is also a spectrophotometric substrate (0.4 M pyridine formate, pH 4.25) of human pancreatic carboxypeptidase B and plasma carboxypeptidase N. Bz-Ala-Arg can be used to screen competitive inhibitors of these two enzymes[1].
