Detailed Explanation
26-amino-acid amphipathic peptide that is the principal toxic component of European honeybee (Apis mellifera) venom, comprising about 50% of dry venom weight. Melittin adopts an α-helical structure with a hydrophobic N-terminal region and a cationic C-terminal region.
It disrupts cell membranes by inserting into the lipid bilayer, causing pore formation and cell lysis (hemolysis). Despite its toxicity, melittin is intensively studied for potential anticancer, antimicrobial, and anti-inflammatory applications. Engineered variants with reduced hemolytic activity are being developed for targeted cancer therapy, often conjugated to nanoparticles or antibodies to improve selectivity.
Key Facts
- 26-amino-acid amphipathic peptide that is the principal toxic component of European honeybee (Apis mellifera) venom, comprising about 50% of dry venom weight.
- Melittin adopts an α-helical structure with a hydrophobic N-terminal region and a cationic C-terminal region.
- It disrupts cell membranes by inserting into the lipid bilayer, causing pore formation and cell lysis (hemolysis).
- Despite its toxicity, melittin is intensively studied for potential anticancer, antimicrobial, and anti-inflammatory applications.
- Engineered variants with reduced hemolytic activity are being developed for targeted cancer therapy, often conjugated to nanoparticles or antibodies to improve selectivity.
Part of the PeptideBond.com education network
Educational Disclaimer
PeptideDefinition.com provides educational content about peptide science. Not medical advice. Consult a licensed healthcare provider for medical decisions.