https://www.selleckchem.com/pr....oducts/gw-441756.htm
the P1 position. Surprisingly, mutations of P1-Gln impaired the C-terminal self-processing but did not affect N-terminal self-processing. The "noncanonical" substrate specificity for its N-terminal self-processing was attributed to the phenylalanine (Phe) residue at the P4 position in the N-terminal site. Furthermore, a double glycine (neutral) substitution at the putative P4-Phe-binding residues (P62G/L185G) abolished the cleavage activity of PToV 3CLpro suggested the potential hydrophobic force between the PToV 3CLpro and P4-Phe sid
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