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E. coli strains and plasmids used in this study
| Strain | Characteristics | Source and reference |
|---|---|---|
| MG1655 (DS291) | Wild-type (F−λ−rph-1) | M. Cashel, NIH (Hernandez & Cashel, 1995) |
| B4189 (FB22940) | MG1655 yjfO : : Tn5(KAN-I-SceI) at position 167 in minus orientation | F. R. Blattner, University of Wisconsin (Kang et al., 2004) |
| pMW201 | pGEM-T containing yjfO | This study |
