Table 8.
Major TF regulons for iron and manganese homeostasis in bacteria.
| Taxonomic group | Iron regulonsa | Manganese regulons a |
|---|---|---|
| Cyanobacteria | Fur | - |
| Actinobacteria | IdeR (DtxR family) | - |
| Firmicutes | Fur | MntR (DtxR family) |
| γ (Enterobacteriales, Xanthomonadales) | Fur | MntR |
| α (Rhizobiales) | Irr (Fur family), RirA (Rrf2 family) | Mur (Fur family) |
| exception: Bradyrhizobiaceae group | Irr | Mur |
| exception: Mesorhizobium loti | Irr, RirA | MntR |
| α (Rhodobacterales) | Irr, Iron-Rhodo-box (uncertain TF) | Mur |
| exception: Rhodobacter capsulatus | Irr, Iron-Rhodo-box | MntR |
| α (other groups), β, δ, ε, γ (other groups) | Fur | - |
a
TF protein families are indicated in parenthesis.