Figure 6: Envelope stress responses defend against T6SS system attack.
Model depicting an attacking T6SS delivering toxic effectors such as TseH. The Rcs phosphorelay and BaeSR (in E. coli) or WigKR (in V. cholerae) two-component systems induce their respective regulons. The induced genes play various roles in protection, including inducing EPS to deflect further T6SS attacks, and mitigating effector-mediated damage. WigR also induces T6SS expression in V. cholerae, potentially instigating counter attacks. EPS, exopolysaccharide; PG, peptidoglycan.