Animal cells and systems

The Korean Society for Integrative Biology (한국통합생물학회)
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Isolation of Antimicrobial Peptides from Skin Secretions of the Oriental Fire-bellied Toad, Bombina orientalis

  • Published : 1998.09.01
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Abstract

Antimicrobial peptides are widely distributed in nature and appear to play important roles in the host defense of plants and animals. In this study, we isolated and characterized three antimicrobial peptides from skin secretions of the oriental fire-bellied toad, Bombina orientalis. These purified peptides were referred to as P1, P2, and P3 in order of their elution. P1, P2, and P3 have molecular weights of 2569, 2566, and 2370 Da by MALDI-TOF mass spectrometer, respectively. They are heat-stable, amphipathic peptides of 24-27 amino acids without cysteine residues. All three peptides are active against representative gram negative and gram positive bacterial species, and in particular, P1 appears to have distinctive antifungal activity. However, no significant hemolytic activity was found for these peptides.

Keywords

References

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