Applications and evolution of melittin, the quintessential membrane active peptide

Biochem Pharmacol. 2021 Nov:193:114769. doi: 10.1016/j.bcp.2021.114769. Epub 2021 Sep 17.

Abstract

Melittin, the main venom component of the European Honeybee, is a cationic linear peptide-amide of 26 amino acid residues with the sequence: GIGAVLKVLTTGLPALISWIKRKRQQ-NH2. Melittin binds to lipid bilayer membranes, folds into amphipathic α-helical secondary structure and disrupts the permeability barrier. Since melittin was first described, a remarkable array of activities and potential applications in biology and medicine have been described. Melittin is also a favorite model system for biophysicists to study the structure, folding and function of peptides and proteins in membranes. Melittin has also been used as a template for the evolution of new activities in membranes. Here we overview the rich history of scientific research into the many activities of melittin and outline exciting future applications.

Publication types

  • Review

MeSH terms

  • Animals
  • Bees / genetics*
  • Bees / physiology*
  • Gene Expression Regulation / physiology
  • Melitten / chemistry
  • Melitten / genetics*
  • Melitten / metabolism*
  • Phylogeny
  • Protein Conformation

Substances

  • Melitten