TABLE 1.

Bacterial strains used in this study

Strain name	Genotype or description	Shape phenotype	Reference or source
LSH100	Wild-type H. pylori; mouse-adapted derivative from H. pylori G27	Helical	48–50
PMSS1	Wild-type H. pylori	Helical	31, 46
LMH6	Δcsd6::cat in PMSS1	Straight	This study
TSH17	Δcsd6::cat in LSH100	Straight	22
TSH31	Δcsd6::cat McGee:csd6:aphA3 in LSH100	Helical and straight morphologies	22
EPH1	csd6 complemented strain, Δcsd6::cat McGee:csd6:aphA3 in PMSS1	Helical	This study
LMH12	csd6 complemented strain, EPH1 backcrossed in PMSS1	Helical	This study
CLH1	ΔcagE::cat in PMSS1	Helical	This study