Table 1.
Bacterial strains used in this study and the presence of P2-like genes and regions in each of them
| Strain | Serotype | Pathotypec | CDT type | Phylogenetic groupd | Presence/absenceb of: |
Reference | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spacer Q | Spacer | cdtA spacer | cdtc-repA | P | P-Q | repA | repA distant | C | O | Short ORFs | Baseplate J | Tail | Terminase | D | FI | Capsid | Lysin | cpxP integrase | ogr-fieF | ||||||
| T22a | O157:H43 | Atypical | V | B1 | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | 23 |
| T16a | O157:H43 | Atypical | V | B1 | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | − | + | + | + | + | 23 |
| T50a | O157:H43 | Atypical | V | B1 | + | + | + | + | + | + | + | + | + | + | + | + | + | + | + | − | + | + | + | + | 23 |
| T34a | O157:H9 | Atypical | V | B1 | − | + | + | + | + | + | + | + | + | + | + | + | + | + | + | − | + | + | + | + | 23 |
| T49a | O157:H37 | Atypical | V | B1 | − | + | + | + | + | + | + | + | + | + | + | + | + | + | + | − | + | + | + | + | 23 |
| T4 | O157:H12 | Atypical | A | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 23 | |
| B20 | O157:H12 | Atypical | A | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 23 | |
| B47 | O157:NM | Atypical | B1 | − | − | − | − | + | + | + | + | + | + | + | + | + | + | + | − | − | + | + | + | 23 | |
| B54 | O157:H12 | Atypical | A | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 23 | |
| E6468/62 | O86:H34 | EPEC | I | ND | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 4 |
| BM2-10 | O88 | Diarrheagenic | III | ND | − | − | − | − | − | − | − | + | − | − | − | − | + | − | − | − | − | − | − | − | 35 |
| 28C | O75:K95 | ExPEC | IV | ND | − | − | − | − | + | + | + | + | − | − | + | + | + | + | + | + | − | + | − | − | 14 |
| 703/88a | O157:NM | EHEC | V | D | − | + | + | + | + | + | + | + | − | + | + | + | + | + | + | + | − | + | − | − | 14 |
| 702/88a | O157:NM | EHEC | V | D | − | + | + | + | + | + | + | + | − | + | + | + | + | + | + | + | − | + | − | − | 14 |
| 493/89a | O157:NM | EHEC | V | D | − | + | + | + | + | + | + | + | − | + | + | + | + | + | + | + | + | + | − | − | 36 |
| E2348/69 | O127:H6 | EPEC | B2 | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 37 | |
| Sakai | O157:H7 | EHEC | D | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | − | 38 | |
| C600 | K-12 | Commensal | ND | − | − | − | − | − | − | − | + | − | − | − | − | − | − | − | − | − | − | − | − | 39 | |
| ER2738 | K-12 | Commensal | ND | − | − | − | − | − | − | − | + | − | − | − | − | − | − | + | − | − | − | − | − | 40 | |
a
Strain was used in the phage induction experiments.
b
“Spacer” refers to the region between cdtA and capsid packaging protein gene Q, which has no associated function so far. “Short ORFs” refers to the region spanning 4 ORFs from a replication gene (repB) to a hypothetical zinc finger protein. +, presence; −, absence.
c
EPEC, enteropathogenic Escherichia coli; EHEC, enterohemorrhagic Escherichia coli; ExPEC, extraintestinal pathogenic Escherichia coli.
d
ND, not determined.