Immunoblot of outer membrane proteins probed with anti-FyuA rabbit serum. The arrow indicates the FyuA protein band. Lane 1, Y. pseudotuberculosis O1 (HPI+); lane 2, E. coli K-12 MG1655 (HPI−); lane 3, EAEC strain 17-2 (HPI+); lane 4, STEC strain O157:H7 3268/90 (HPI−); lane 5, STEC strain O62:H− 4595/97 (HPI−); lane 6, STEC strain O40:H− 4828/97 (HPI−); lane 7, STEC strain O103:H− 4797/97 (HPI−); lane 8, STEC strain O128:H2 3115/97 (HPI+); lane 9, STEC strain O128:H2 3172/97 (HPI+); lane 10, STEC strain ONT:H− 4941/97 (HPI+); lane 11, STEC strain O3:H10 5726/96 (HPI+); lane 12, STEC strain O60:H− 3357/98 (HPI+); lane 13, STEC strain Orough:H− 0512E015 (HPI+); lane 14, STEC strain O26:H11 6061/96 (HPI+). Molecular mass is shown on the right.