Please note: this product can only be supplied to registered research and development facilities, and may be used for in vitro research use only, not for administration to humans or animals.

Broad spectrum antibacterial agent.

Pexiganan (MSI 78) is a synthetic cationic peptide and an analogue of magainin 2, the host defence peptide isolated from the skin of the African frog Xenopus laevis. Pexiganan exhibits in vitro broad-spectrum antibacterial activity against many gram-positive and gram-negative, anaerobic and aerobic bacteria and is the first AMP developed into an antibacterial drug and the best-studied AMP to date for therapeutic purposes. Pexiganan shows a barrel-stave type mechanism of membrane disruption or channel formation and exerts its antibacterial effect by forming toroidal pores in bacterial membranes.

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