Antibacterial activity of cardiotoxin-like basic polypeptide from cobra venom

Bioorg Med Chem Lett. 2020 Feb 1;30(3):126890. doi: 10.1016/j.bmcl.2019.126890. Epub 2019 Dec 16.

Abstract

Antibacterial activity of the three-finger toxins from cobra venom, including cytotoxin 3 from N. kaouthia, cardiotoxin-like basic polypeptide A5 from N. naja (CLBP), and alpha-neurotoxin from N. oxiana venom, was investigated. All toxins failed to influence Gram-negative bacteria. The most pronounced activity against Bacillus subtilis was demonstrated by CLBP. The latter is ascribed to the presence of additional Lys-residues within the membrane-binding motif of this toxin.

Keywords: Antibacterial activity; Bacillus subtilis; Cobra venom; Electric charge distribution; Three-finger toxins.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Anti-Bacterial Agents / chemistry*
  • Anti-Bacterial Agents / isolation & purification
  • Anti-Bacterial Agents / pharmacology
  • Bacillus subtilis / drug effects
  • Cardiotoxins / chemistry
  • Elapid Venoms / metabolism*
  • Elapidae / metabolism
  • Escherichia coli / drug effects
  • Microbial Sensitivity Tests
  • Peptides / chemistry*
  • Peptides / isolation & purification
  • Peptides / pharmacology
  • Protein Structure, Tertiary
  • Staphylococcus aureus / drug effects

Substances

  • Anti-Bacterial Agents
  • Cardiotoxins
  • Elapid Venoms
  • Peptides