TABLE 2.
Different lpfA types and their associations with intimin types in reference collections of virulent E. coli strains
| lpfA type | Predominant serotype(s) (strain[s]) possessing the lpfA type | Specific intimin (eae) type(s) associated |
|---|---|---|
| lpfA1-1 | EPEC O127:H6 (E2348/69) | α1 (alpha), δ (delta), κ (kappa), η1 (eta), η2, λ (lambda), μ (mu), π (pi) |
| lpfA1-2 | REPEC O15:H− (83/39), EPEC2 O128:H2 (DEC11a), O86:H43 (ECOR23), EPEC O128:H21 (DEC15A), O4:H43 (ECOR67), EHEC2 O111:H8 (DEC8B), O104:NM (ECOR28), O26:H11 (AB161111) | β1 (beta), θ1 (theta), ɛ1 (epsilon), ɛ2 |
| lpfA1-3 | EHEC1 O157:H7 (EDL933), EPEC O55:H7 (DEC5A) | γ1 (gamma) |
| lpfA1-4 | ONT:H10 (ECOR65) | NAa |
| lpfA1-5 | ONT:H26 (ECOR42), O119:NM (O119-53) | NA |
| lpfA2-1 | EHEC O113:H21, O15 (O15), O78:K80:H9 (chi7122), O78 (789), O85:H− (ECOR07), O104:NM (ECOR28), ETEC O157:H43 (DEC7A), O86:H43 (ECOR23), O7:H21 (ECOR33), EHEC2 O111:H8 (DEC8B), EHEC2 O26:H11 (DEC10A) | β1, θ1, ɛ2, ζ1 (zeta), ι1B (iota), ι1C |
| lpfA2-2 | EHEC1 O157:H7 (EDL933), EPEC O55:H7 (DEC5A), ONT:H26 (ECOR42), O119:NM (O119-53) | γ1 |
| lpfA2-3 | O44 (O44-20), O1:H6 (ECOR46), ONT:HNT (ECOR48), O7:NM (ECOR40), O79:H25 (ECOR36) | NA |
a
NA, no association; these types of lpfA1 or lpfA2 genes were not found in any of the intimin-positive strains from the E. coli Reference Laboratory (Lugo, Spain) analyzed.