Table 4. Differential expression of selected regulatory systems in response to AF.
| 6180 | SF370 | Locus | ML | LL | S | Descriptions |
| M28_Spy0104 | SPy0124 | rofA | −2.09 | −3.56 | −2.69 | Transcriptional regulator RofA |
| M28_Spy0122 | SPy0146 | sloR | −11.53 | −13.76 | Transcriptional regulator pfoR | |
| M28_Spy0198 | SPy0242 | fasB | −3.31 | Sensory transduction protein kinase FasB | ||
| M28_Spy0199 | SPy0244 | fasC | −2.08 | −2.09 | −4.77 | Sensory transduction protein kinase FasC |
| M28_Spy0200 | SPy0245 | fasA | −3.61 | Response regulator FasA | ||
| M28_Spy0356 | SPy0450 | mtsR | 3.96 | Iron-dependent repressor | ||
| M28_Spy0412 | SPy0514 | ccpA | −3.65 | Catabolite control protein A | ||
| M28_Spy0465 | SPy0584 | ptsK | 2.66 | HPR(SER) kinase | ||
| M28_Spy0761 | SPy1061 | - | −4.83 | Two-component sensor kinase yesM | ||
| M28_Spy0762 | SPy1062 | - | −3.19 | Two-component response regulator yesN | ||
| M28_Spy0807 | SPy1106 | dpiA | 2.09 | Transcriptional regulatory protein dpiA | ||
| M28_Spy0808 | SPy1107 | dpiB | 2.16 | Sensor kinase dpiB | ||
| M28_Spy0919 | SPy1236 | ciaH | −3.35 | Sensor protein ciaH | ||
| M28_Spy0920 | SPy1237 | ciaR | −2.58 | Transcriptional regulatory protein ciaR | ||
| M28_Spy1215 | SPy1549 | ahrC.2 | −16.22 | Arginine repressor, argR | ||
| M28_Spy1346 | SPy1587 | - | −4.45 | Two-component response regulator yesN | ||
| M28_Spy1347 | SPy1588 | - | −3.03 | Two-component sensor kinase yesM | ||
| M28_Spy1373 | SPy1621 | yvqC | 2.05 | Two-component response regulator yvqC | ||
| M28_Spy1374 | SPy1622 | yvqE | 2.28 | 3.93 | Two-component sensor protein yvqE | |
| M28_Spy1708 | SPy2026 | ihk | −1.96 | Two component system histidine kinase | ||
| M28_Spy1709 | SPy2027 | irr | −1.58 | Two-component response regulator |
Values represent fold change in expression in AF at ML, LL, and S growth phases compared to expression in THY medium.