Table 1. Bacterial strains and plasmids used in this study.
| Strains | Notes | Reference |
| CFT073 | Clinical isolate | [35] |
| CFT073ΔecpA | Wild-type strain mutated in ecpA::km | This study |
| CFT073ΔecpA (pMAT9) | ΔecpA complemented with pMAT9 | This study |
| F11 | Clinical isolate | [36] |
| F11ΔecpA | Wild-type strain mutated in ecpA::km | This study |
| F11ΔecpA(pMAT9) | ΔecpA complemented with pMAT9 | This study |
| UTI89 | Clinical isolate | [37] |
| Plasmids | ||
| pKD46 | Red recombinase system plasmid | [27] |
| pKD4 | Kanamycin cassette | [27] |
| pMAT9 | ecpAB (matBC) in pSE380 | [14] |