Bacteria use the type VI secretion system (T6SS) to deliver toxic effectors into bacterial or eukaryotic cells. Here, Kanarek et al. identify a protein domain, RIX, that defines a class of polymorphic T6SS effectors with antibacterial and anti-eukaryotic toxic domains, and that enables T6SS-mediated delivery of other effectors.
- Katarzyna Kanarek
- Chaya Mushka Fridman
- Dor Salomon