| Id | Element | Ion | Binding family | Amino acids or nucleotide residues names | All bound residues | Is homomer | Number of bound amino acids or nucleotide residues | Number of all bound residues | Number of coordinating chains | Representative |
|---|---|---|---|---|---|---|---|---|---|---|
| 6EX0-FE-1 | FE | Fe²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 6 | 2 | ✔ |
| 6EX0-FE-2 | FE | Fe²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 6 | 2 | ✘ |
| 6N63-FE-1 | FE | Fe³⁺ | E2 | GLU. | ACT.GLU. | ✔ | 2 | 3 | 2 | ✔ |
| 6N63-FE-2 | FE | Fe³⁺ | E2 | GLU. | ACT.GLU. | ✔ | 2 | 4 | 2 | ✘ |
| 7S8T-FE-1 | FE | Fe³⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 7S8T-FE-2 | FE | Fe³⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 7S8T-FE-3 | FE | Fe³⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 7S8T-FE-5 | FE | Fe³⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 7S8T-FE-7 | FE | Fe³⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |