Disc electrophoresis of phenol:acetic acid:water-soluble proteins for the identification of Yersinia species

Disc electrophoresis of phenokacetic acid:water extracts of Yersinia pestis, Y pseudotuberculosis, Y enterocolitica, Y philomiragia and Y rucken produced protein separation patterns characteristic of each species. The patterns produced by Y pestis, Y pseudotuberculosis, Y enterocolitica and Y rucken showed features in common. Those given by Y philomiragia strains were quite distinctive and snowed little similarity to the other Yersinia species. All Y enterocolitica strains produced similar patterns irrespective of biochemical properties. Strains classified as Y intermedia or Y enterocolitica-like produced patterns indistinguishable from those given by Y enterocolitica.