Cecropins

Definition

Linear antibacterial peptides produced by insects and some vertebrates, characterized by their amphipathic α-helical structure and potent activity against bacteria.

Etymology

Named after the Cecropia moth (genus *Hyalophora*), where they were first discovered.

Example

Cecropins are highly effective against gram-negative bacteria, disrupting their cell membranes.

Related Terms

• Antibiotics
• Insects
• Defense mechanisms

Usage Notes

Cecropin activity varies depending on the specific type and its concentration.