A new cell–cell communication system in Streptococcus salivarius, a human gut commensal, discriminates between close signaling molecules to specifically produce bacteriocin-based antimicrobials and disconnects it from foreign DNA acquisition.

Genetic, biochemical, and cell biological approaches reveal a new form of contact-dependent inhibition in bacteria involving bacteriocin-like proteins that aggregate on the surface of cells.

Bacterial warfare protein colicin E1 opens its hinge to plug antibiotic efflux pump TolC and potentiate antibiotics.

Evolutionary game theory identifies reciprocation as a key winning strategy for warring bacteria.

12 new class IIb microcins have been structurally identified, phylogenetically assessed, and functionally tested for their antimicrobial activity, increasing the total number of these bacteriocins to 17.

Conflicts between CRISPR-Cas systems and antibiotic resistance plasmids can be exploited to selectively eliminate antibiotic resistance from Enterococcus faecalis populations.

The discovery and development of a feline skin commensal bacterium for bacteriotherapy against skin disease, that could benefit patients due to established low cytotoxicity, broad-spectrum antimicrobial activity and anti-inflammatory activity.

Beneficial symbiotic bacteria encode an exceptional number of toxin-related genes that are all expressed by the symbionts in the host, supporting their key role in host-microbe interactions.

Structural and biochemical characterization of the protease domain of an ABC transporter demonstrates the basis for recognition of substrate leader peptides.