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Table 1 Sequences of synthetic peptides in the 1-letter-code; underlined letters represent the mutated amino acids. The tryptic cutting site K23-I24 of the peptides are marked with dashes. pWT, wild type peptide; pD22G, peptide D22G; pK23R, peptide K23R.

From: Cathepsin B cleavage of the trypsinogen activation peptide

peptide amino acid sequence
pWT APFDDDDK-IVGG
pD22G APFDDDGK-IVGG
pK23R APFDDDDK-IVGG