Substrate Mimetics-Specific Peptide Ligases: Studies on the Synthetic Utility of a Zymogen and Zymogen-Like Enzymes

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Abstract
Although proteases are capable of synthesizing peptide bonds, they are not proficient at peptide fragment ligation. Further manipulations are needed to shift the native enzyme activity from the cleavage to the synthesis of peptides. This account reports on the synthetic potential of nonactivatable trypsinogen and zymogen-like enzymes designed to minimize proteolytic side reactions during peptide synthesis.