Studying the interaction of maganin 2 and cecropin A with E. coli bacterial cells using circular dichroism

The potential of antimicrobial peptides (AMPs) as an effective therapeutic alternative to classic and current antibiotics has encouraged studies to understand how they interact with the bacterial membrane. Here we describe how to detect, by circular dichroism (CD), the secondary structures of two antimicrobial peptides, magainin 2 and cecropin A, in the presence of E. coli bacterial cells.