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Analytical biochemistry

Use of a real-time polymerase chain reaction thermocycler to study bacterial cell permeabilization by antimicrobial peptides.


PMID 18656439

Abstract

Antimicrobial peptides are good leads to develop new antibiotics, but knowledge of their mode of action is a prerequisite. Destruction of the microbial membranes through a detergent-like mechanism is one of these modes of action. This is usually studied by using a fluorescent nucleic acid stain such as SYTOX Green, which is impermeable to living cells. Using a simple protocol based on the use of a standard real-time thermocycler, we confirmed that the actions of the antimicrobial peptides LL-37 and magainin 2 on bacterial cells are different.

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