TABLE 1.
Distribution of genes encoding major fimbria subunits in five O157-specific islands in a collection of DEC strainsa
| DEC no.b | Serotype | OI141 lpfA1c | OI154 lpfA2c | OI47 Z1534 | OI61 Z2200 | OI127 Z4498 | DEC no.b | Serotype | OI141 lpfA1c | OI154 lpfA2c | OI47 Z1534 | OI61 Z2200 | OI127 Z4498 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1A | O55:H6 | + | − | − | + | − | 8C | O111:NM | − | − | + | + | + | |
| 1B | O55:H6 | + | − | − | + | − | 8D | O111:H11 | − | − | + | + | + | |
| 1C | O55:H6 | + | − | − | + | − | 8E | O111:H8 | − | − | + | + | + | |
| F563-55 | O55:H6 | + | − | − | − | − | 9A | O26:H11 | − | − | + | + | + | |
| 1E | O55:H6 | + | − | − | + | + | 9B | O26:N | − | − | + | + | + | |
| 2A | O55:H6 | + | − | − | + | + | C240-52 | O26:N | − | − | + | + | + | |
| 2B | O55:NM | + | − | − | + | + | 9D | O26:H11 | − | − | + | + | + | |
| 2C | O55:H6 | + | − | + | + | − | 45 | O26:H11 | − | − | + | + | + | |
| 2D | O55:H6 | + | − | − | + | − | H30 | O26:H11 | − | − | + | + | + | |
| 2E | O55:H6 | + | − | − | + | − | 10B | O26:H11 | − | − | + | + | + | |
| 3A | O157:H7 | + | + | + | + | + | 10C | O26:H11 | − | − | + | + | + | |
| 3B | O157:H7 | + | + | + | + | + | C12-52 | O26:H11 | − | − | + | + | + | |
| 3C | O157:H7 | + | − | + | + | + | 10E | O26:H11 | − | − | + | + | + | |
| 3D | O157:H7 | + | + | + | + | + | RDEC-1 | O15:NM | − | − | + | − | + | |
| 3E | O157:H7 | + | + | + | + | + | 11A | O128a:H2 | − | − | + | + | + | |
| 493/89 | O157:H− | + | + | + | + | + | 11B | O128a:H2 | − | − | + | + | + | |
| 4A | O157:H7 | + | + | + | + | + | 11C | O45:H2 | − | − | + | + | + | |
| 4B | O157:H7 | + | + | + | + | + | 11D | O128:H2 | − | − | + | + | + | |
| 4C | O157:H7 | + | + | + | + | + | 11E | O128:H2 | − | − | + | + | + | |
| 4D | O157:H7 | + | + | + | + | + | 12A | O111:H2 | − | − | + | + | + | |
| 4E | O157:H7 | + | + | + | + | + | 12B | O111:H2 | − | − | + | + | + | |
| EDL933 | O157:H7 | + | + | + | + | + | 12C | O111:NM | − | − | + | + | + | |
| 5A | O55:H7 | + | + | + | + | + | 12D | O111:H2 | − | − | − | − | + | |
| 5B | O55:H7 | + | + | + | + | − | 12E | O111:N | − | − | − | − | + | |
| 5C | O55:H7 | + | + | + | + | + | 13A | O128:H7 | − | − | − | + | + | |
| 5D | O55:H7 | + | + | + | + | + | 13B | O128:H7 | − | − | − | + | + | |
| 5E | O55:H7 | + | + | + | − | + | 13C | O128:H7 | − | − | − | + | + | |
| 6A | O111:H21 | − | − | + | − | + | 13D | O128:H7 | − | − | − | + | + | |
| C142-54 | O111:H12 | − | − | + | − | + | 13E | O128:H47 | − | − | − | + | + | |
| 6C | O111:H12 | − | − | − | − | − | 14A | O128:H21 | − | − | − | + | + | |
| F436-51 | O111:H12 | − | − | + | − | + | 14B | O128:H21 | − | − | − | + | + | |
| 6E | O111:NM | − | − | + | − | + | 14C | O128a:H21 | − | − | − | + | + | |
| 7A | O157:H43 | − | − | + | + | + | 14D | O128:NM | − | − | − | + | + | |
| 7B | O149:NM | − | − | + | + | + | 14E | O128:H21 | − | − | − | + | + | |
| 7C | O157:H43 | − | − | + | + | + | 15A | O111:H21 | − | − | − | + | + | |
| 7D | O157:H43 | − | − | + | + | + | 15B | O111:H21 | − | − | − | + | + | |
| 7E | O157:NM | − | − | + | + | + | 15C | O111:H21 | − | − | − | + | + | |
| 8A | O111a:NM | − | − | + | + | + | 15D | O111:H21 | − | − | − | + | + | |
| 8B | O111:H8 | − | − | + | + | + | 15E | O111:H21 | − | − | − | + | + |
a
The presence of the major fimbrial subunit gene of each O island was confirmed by PCR and colony blot hybridization as described in Materials and Methods.
b
DEC classification data were derived from the study of Whittam et al. (46).
c
The distribution of the lpfA1 and lpfA2 genes is based on data from the study of Torres et al. (39), and the data indicate the distribution of these genes in individual strains.