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. 1990 Dec;38(12):3249-52.
doi: 10.1248/cpb.38.3249.

Amino acids and peptides. XXIX. Synthesis of peptide fragments related to active center of eglin c and studies on the relationship between their structure and their inhibitory activity against cathepsin G and alpha-chymotrypsin

K Nakabayashi  1 , S Tsuboi, T Fujimoto, Y Okada, Y Nagamatsu, J Yamamoto
Affiliations

Amino acids and peptides. XXIX. Synthesis of peptide fragments related to active center of eglin c and studies on the relationship between their structure and their inhibitory activity against cathepsin G and alpha-chymotrypsin

K Nakabayashi et al. Chem Pharm Bull (Tokyo). 1990 Dec.

Abstract

H-Ser-Pro-Val-Thr-Leu-Asp-Leu-Arg-Tyr-OMe, corresponding to the sequence 41-49 of eglin c, inhibited human leukocyte cathepsin G and alpha-chymotrypsin. In order to gain further insight into the relationship between the structure and the inhibitory activity against cathepsin G and alpha-chymotrypsin, peptide fragments related to the above nonapeptide were synthesized by a conventional solution method and their inhibitory activities were examined. The smallest peptide which exhibited inhibitory effects on the above enzymes was H-Pro-Val-Thr-Leu-OMe, corresponding to the sequence 42-45 of eglin c.

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