TABLE 4.
Genes induced by cold shock in the quadruple-deletion strain
| Gene name and role | Gene product and/or function | Mutant/wild type ratio (15°C, 1 h) |
|---|---|---|
| Genes involved in membrane synthesis/function | ||
| exbD | ExbD protein | 4.4 ± 0.2 |
| fecA | Iron(III) dicitrate transport protein FecA precursor | 4 ± 0.21 |
| fecB | Iron(III) dicitrate-binding periplasmic protein precursor | 12.5 ± 1.1 |
| fecC | FecC protein | 4 ± 0.2 |
| fecD | Iron(III) dicitrate transport system permease protein | 5.2 ± 0.18 |
| fecE | Membrane-bound iron(III) dicitrate transport protein | 5.8 ± 0.4 |
| fepC | Ferric enterobactin transport protein FepC | 3.2 ± 0.08 |
| fhuA | Ferrichrome-iron receptor precursor | 3.9 ± 0.4 |
| fhuF | Ferric hydroxamate transport protein | 7 ± 0.2 |
| livK | Leucine transport protein LivK precursor | 4.8 ± 0.4 |
| Genes involved in cell metabolism | ||
| acpS | Holo-[acyl-carrier protein] synthase | 3 ± 0.1 |
| aroE | Shikimate 5-dehydrogenase | 4.3 ± 0.25 |
| aroG | Phospho-2-dehydro-3-deoxyheptonate aldolase | 4.2 ± 0.3 |
| cobU | Cobinamide kinase | 3.9 ± 0.2 |
| ddg | Ddg protein | 5.4 ± 0.4 |
| gltD | Glutamate synthase | 5.5 ± 0.18 |
| gltF | GltF protein | 4.8 ± 0.4 |
| Genes encoding proteins with diverse functions | ||
| creA | CreA protein | 5.1 ± 0.05 |
| deaD | ATP-dependent RNA helicase | 5 ± 1 |
| fimE | Type 1 fimbriae regulatory protein FimE | 5.5 ± 1 |
| fimF | FimF protein | 7 ± 1.1 |
| hha | Hha protein | 3.6 ± 0.5 |
| intA | Prophage cp4-57 integrase | 3.5 ± 0.19 |
| rhlE | Putative ATP-dependent RNA helicase RhIE | 4.1 ± 0.4 |
| rpoE | RNA polymerase sigma-E factor (sigma-24) | 4.6 ± 0.44 |
| rseB | RseB protein | 3.2 ± 0.5 |
| rseC | Sigma-E factor regulatory protein | 5.5 ± 0.4 |
| sdiA | SdiA regulatory protein | 3.5 ± 0.12 |
| tnpR | Resolvase | 5.1 ± 0.6 |