Figure 3.

Y. enterocolitica palearctica O:3/4-specific chromosomally encoded type three secretion system. This system is similar to the SPI-2 of Salmonella. The translocon of the apparatus is present, but SsaGH proteins of the needle are missing; also SsaR from the inner membrane ring. In addition, no effector proteins are linked directly to the secretion system gene cluster in the genome strain Y11.