 the study examined the structure of a gram-positive bacterium's antimicrobial peptid sensing and resistance machinery, known as BCE modules. The researchers found that the modules consist of an unusual ABC transporter and a two-component sensor histidine kinase. They discovered that the ABC transporter component assembles into a functional complex, which is then activated by the sensor histidine kinase. This activation allows the complex to sense the presence of antimicrobial peptids and respond accordingly. This article was authored by Natasha L. George and Benjamin J. Orlando.