| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5UDV-FE-1 | FE | Fe³⁺ | D3 | ASP. | ASP.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 5UDV-FE-2 | FE | Fe³⁺ | D3 | ASP. | ASP.HOH. | ✔ | 3 | 4 | 3 | ✔ |