Modeling, synthesis and in vitro testing of peptides based on unusual amino acids as potential antibacterial agents

  
Sargsyan A.S.1 , Karapetyan L.T.1, Mkhitaryan A.V.1, Stepanyan L.A.1, Sargsyan T.H.2, Danghyan Yu.M.1, Sargsyan A.V.1, Oganezova G.G.1, Hovhannisyan N.A.2

1. Scientific and Production Center “Armbiotechnology” NAS RA, Yerevan, Armenia
2. Scientific and Production Center “Armbiotechnology” NAS RA, Yerevan, Armenia; Yerevan State University, Yerevan, Armenia
Section: Experimental Study
DOI: 10.18097/PBMC20247006413      PubMed Id: 39718104
Year: 2024  Volume: 70  Issue: 6  Pages: 413-420
Currently non-protein amino acids and synthetic peptides are widely used as blocks in drug design. Many proteases are of great interest for pharmacology due to their key role in various pathologies. Bacterial collagenase (EC 3.4.24.3) is quite an attractive target for drug development as the inhibitors of bacterial collagenolytic protease may stop propagation of diseases caused by infections. The interaction of peptides containing unusual amino acids with Clostridium histolyticum collagenase has been evaluated by molecular docking followed by the measurement of enzyme inhibition by selected compounds. According to the docking analysis, 4 compounds were selected and synthesized for further research. Measurement of enzyme activity revealed that all tested compounds inhibited collagenase activity with IC₅₀ values ranging within 1.45–2.08 μM. The antibacterial activity of synthesized compounds against some resistant strains was characterized by MICs values ranging within 4.6–9.2 μg/ml.
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Keywords: unusual amino acid, docking, collagenase, inhibitor, antibacterial activity
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Sargsyan, A. S., Karapetyan, L. T., Mkhitaryan, A. V., Stepanyan, L. A., Sargsyan, T. H., Danghyan, Yu. M., Sargsyan, A. V., Oganezova, G. G., Hovhannisyan, N. A. (2024). Modeling, synthesis and in vitro testing of peptides based on unusual amino acids as potential antibacterial agents. Biomeditsinskaya Khimiya, 70(6), 413-420.
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