| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77456288 |
| Locus Tag | Pfl01_0060 |
| Description | zinc uptake regulation protein |
| Strain | Pseudomonas fulva 12-X |
| GI | 333902491 |
| Locus Tag | Psefu_4318 |
| Description | ferric uptake regulator family protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643432 |
| Locus Tag | HCH_00537 |
| Description | Fe2+/Zn2+ uptake regulation protein |