TABLE 2.
Characteristics of E. coli strains
| E. coli straina | Origin | Country | Phylogenetic groupb | Yersiniabactin analysisc
|
||||
|---|---|---|---|---|---|---|---|---|
| HPLC result | PCR test result for the following gene and primers:
|
Dot blot resulte | ||||||
| fyuA; FyuA f′, FyuA r | irp1; irp1up, irp1lp | irp1; PSYE2, PSYE2R | ||||||
| ECOR 1 | Human | United States | A | − | − | − | − | − (P) |
| ECOR 3 | Dog | United States | A | − | − | − | − | − (P) |
| ECOR 4 (P) | Human | United States | + | + | + | + | + | |
| ECOR 4 (D) (J) | Human | United States | A | − | − | − | − | NT |
| ECOR 10d | Human | United States | A | + | + | + | + | + (P) |
| ECOR 13d | Human | Sweden | A | − | − | − | − | − (P) |
| ECOR 18d | Celebes ape | United States | A | − | − | − | − | − (P) |
| ECOR 20d | Steer | India | A | − | − | − | − | − (P) |
| ECOR 22 | Steer | India | A | − | − | − | − | − (P) |
| ECOR 67 | Goat | Indonesia | B1 | − | − | − | − | − (J) |
| ECOR 69 (P) (D) | Celebes ape | United States | + | + | + | + | + (P) | |
| ECOR 69 (J)d | Celebes ape | United States | B1 | − | − | − | − | NT |
(P), obtained from B. Picard (University of Brest, France); (D), obtained from E. Denamur (Faculty of Medicine Xavier Bichat, Paris, France); (J), obtained from J. R. Johnson (University of Minnesota, Minneapolis); no notation, identical results for three origins.
Information from reference 38.
Data from this study.
Strain previously noted as possessing fyuA (38). However, recent reassessments using the same method as used previously confirmed the result presented here (J. R. Johnson, personal communication).
Dot blot results using the intermediate and lowest stringent washing conditions; NT, not tested; since only one origin was tested for each reference strain, the origin of the tested strain is specified with the result.