Table 1. Strains and plasmids used in this study.

E. coli strains	Genotype	Source or reference
XL1-blue	F− supE44 hdsR17 recA1 endA1 gyrA46 thi relA1 lac− F′ proAB− lacIq lacZΔM15 Tn10 (TetR)	Laboratory collection
JP313	araD139 relA rpsL 150 thi flb5301 (lacU 139) deo7 ptsF25 Δara 174	Laboratory collection
MG1655 ttdA::Cmp	F− ttdA::Cmp CmpR	[31]
FB8.27	F−, Δlac X74, entF::TnphoA′5, TetR	[37]
FB8.27 (pAM238::hasR)	FB8.27 pAM238::hasR, TetR, SpcR	[24]
FB8.27 efeB::Kan yfeX::Cmp (pAM238::hasR)	FB8.27 efeB::Kan yfeX::Cmp, pAM::hasR, TetR, SpcR, KanR, CmpR	[24]
XL1-blue (pBAD24:: hemShis)	XL1-blue, pBAD24::hemS his, AmpR	This study
JP313 (pBAD24)	JP313 pBAD24 AmpR	This study
JP313 (pBAD24::hemShis)	JP313 pBAD24::hemS his AmpR	This study
FB8.27(pAM238::hasR), (pBAD24)	FB8.27 pAM238::hasR, pBAD24, TetR, SpcR, AmpR	This study
FB8.27 efeB::Kan yfeX::Cmp (pAM238::hasR), (pBAD24)	FB8.27 efeB::Kan yfeX, pAM::hasR, pBAD24, TetR, SpcR, KanR, AmpR, CmpR	This study
FB8.27 efeB::Kan yfeX::Cmp (pAM238::hasR), (pBAD24::hemS his)	FB8.27 efeB::Kan yfeX::Cmp, pAM::hasR, pBAD24::hemS his, TetR, SpcR, KanR, AmpR, CmpR	This study