Table 1. List of strains and plasmids.

Escherichia coli strains
MG1655		F-, λ−, ilvG−, rfb-50, rph-1	[2]
AMD052		MG1655 ΔthyA	This work
AMD095		MG1655 lacZ 2017-2019 GAT→TGA	This work
AMD225		MG1655 allR-FLAG3	This work
VS003		MG1655 ΔthyA Phigh:lacZ	This work
VS004		MG1655 ΔthyA Pmed:lacZ	This work
VS005		MG1655 ΔthyA Plow:lacZ	This work
VS006		MG1655 ΔthyA Prha:lacZ	This work
ETEC strains
H10407		Wild-type	[13]
AY001		H10407 ΔthyA	This work
AY004		H10407 eslA LexA site mutation	This work
AMD248		H10407 allR-FLAG3	This work
Salmonella enterica serovar Typhimurium strains
14028s	Wild-type		[14]
AMD212	14028s ΔthyA		This work
JJA001	14028s ΔoafA		This work
BLP006	14028s hilD-FLAG3		This work
Plasmids
pKD46	Encodes λ recombinase system		[10]
pKD13	kan r recombineering template		[10]
pGEM-T	T-tailed cloning vector		Promega
pAMD001	pGEM-T-thyA		This work
pAMD135	pGEM-T-FLAG3-thyA-FLAG3		This work
pVS003	pGEM-T-Phigh-thyA-Phigh		This work
pVS004	pGEM-T-Pmed-thyA-Pmed		This work
PVS005	pGEM-T-Plow-thyA-Plow		This work
pVS006	pGEM-T-Prha-thyA-Prha		This work