gene (tdh) and/or the tdh-related hemolysin gene (trh). Strains possessing one or both of these hemolysins exhibit beta-hemolysis on specialised blood agar plates called Wagatsuma agar, while the phenomenon being called the eponymous Kanagawa phenomenon. A distinct correlation seems to exist between presence of tdh, trh, and the two known T3SS variants: observations have shown T3SS2? correlating with tdh+/trh- strains, while T3SS2? correlates with tdh-/trh+ strains.

GefA, a GGEEF domain containing