TABLE 1.
Salmonella serovar Typhimurium genes exhibiting more than a fivefold increase in the level of expression during the lactic acid-induced acid tolerance response and members of the OxyR regulon that are down-regulated during the responsea
| Gene | Expression level after exposure to lactic acid at pH 5.8 compared to expression at pH 7 | Function or comment | |
|---|---|---|---|
| Common name | Systematic name | ||
| cadA | STM2559 | 5.9 | Lysine decarboxylase 1 |
| cadB | STM2558 | 50.94 | Lysine/cadaverine transport protein |
| cspB | STM1996 | 8.97 | Putative cold shock protein |
| ahpC | STM0608 | 0.2 | Detoxification of hydroperoxides |
| ahpF | STM0609 | 0.06 | Detoxification of hydroperoxides |
| dps | STM0831 | 0.14 | Starvation-induced resistance to H2O2 |
| katG | STM4106 | 0.09 | Catalase; hydroperoxidase HPI(I) |
| oxyR | STM4125 | 0.57 | Regulatory protein sensor for oxidative stress |
a
The complete set of transcriptome data has been submitted to the ArrayExpress database (www.ebi.ac.uk/arrayexpress).