The YjfJ protein is the effector of a second PspA/VIPP1 system that is widespread in the Gammaproteobacteria
Daniel R Game, Harry C Livesy, Marjan W Van der Woude, Gavin Hugh Thomas
The paper identifies a second PspA/VIPP1 system in Gammaproteobacteria, characterized by YjfJ-like proteins, which are prevalent and functionally distinct from the canonical PspA system.
bioRxiv · Nov 4, 2026 · PreprintMicrobiology