TABLE 2.
Redox-responsive regulators
| Regulator | Stress stimulus | Sensory mechanism | Reference(s) |
|---|---|---|---|
| NorR | Nitric oxide | Nitrosylation of coordinated iron | 60 |
| NsrR | Nitric oxide | Nitrosylation of iron-sulfur cluster | 61 |
| OhrR | Organic peroxide | Cysteine oxidation | 98 |
| OxyR | Hydrogen peroxide | Cysteine oxidation | 99, 100 |
| PerR | Hydrogen peroxide | Histidine oxidation | 55 |
| Rex | NADH/NAD+ ratio | NAD+ enhances DNA binding | 65 |
| SoxR | Redox-cycling compounds | Oxidation of iron-sulfur cluster | 67 |
| SpxA | Disulfide stress | Cysteine oxidation | 63 |