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Acid sensitivities of H. pylori strains
| Strain | % survival ata: |
||
|---|---|---|---|
| pH 7.0 | pH 5.0 | pH 3.0 | |
| X47 WT | 100 | 96 + 9 | 41 + 7 |
| X47 hp119::cat | 100 | 9.3 + 3.4 | 4.2 + 1.4 |
| X47 hp119 complementation strain | 100 | 93 + 7 | 39 + 5 |
The values are the percentages of cells surviving after treatment for 1 h at pH 5.0 or pH 3.0 relative to the survival at pH 7.0 (normalized to 100%). The data are the means + standard errors from three independent determinations (3 biological replicates).
