Keywords: Antiinfective Agent, Antimicrobial Cationic Peptide, Cecropin A, Lipopolysaccharide, Magainin 2 Peptide, Xenopus, Magainin Derivative, Xenopus Protein, Animal, Article, Chemistry, Circular Dichroism, Escherichia Coli, Metabolism, Protein Folding, Protein Secondary Structure, Xenopus Laevis, Anti-Bacterial Agents, Protein Structure, Time Factors,
Affiliations: *** IBB - CNR ***
Diagnostica e Farmaceutica Molecolari Scarl, via Mezzocannone 16, 80134 Napoli, Italy
Istituto di Biostrutture e Bioimmagini, CNR, via Mezzocannone 16, 80134 Napoli, Italy
Dipartimento di Farmacia, Università di Napoli Federico II, via Mezzocannone 16, 80134 Napoli, Italy
References: Not available.
Circular Dichroism studies on the interactions of antimicrobial peptides with bacterial cells
Studying how antimicrobial peptides interact with bacterial cells is pivotal to understand their mechanism of action. In this paper we explored the use of Circular Dichroism to detect the secondary structure of two antimicrobial peptides, magainin 2 and cecropin A, with E. coli bacterial cells. The results of our studies allow us to gain two important information in the context of antimicrobial peptides- bacterial cells interactions: peptides fold mainly due to interaction with LPS, which is the main component of the Gram negative bacteria outer membrane and the time required for the folding on the bacterial cells depends on the peptide analyzed.
Circular Dichroism studies on the interactions of antimicrobial peptides with bacterial cells