TABLE 1.

Strains used in this study

H. pylori strain	Knockout strain no.	Description/genotype	Reference or source
SS1
WT		Wild-type strain	62; J. O’Rourke
ΔfliM mutant	KO1064	ΔfliM::cat	This study (allele published in reference 41)
ΔmotB mutant	KO536	ΔmotB2	65
G27
WT		Wild-type strain	66; N. Salama, Fred Hutchison Cancer Research Center, Seattle, WA
motB mutant	KO493	motB::aphA3	This study
flgS mutant	KO688	flgS::Tncat	67
fliA mutant	KO689	fliA::Tncat	67