| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1LWD-MN-1 | MN | Mn²⁺ | D2 | ASP. | ASP.HOH.ICT. | ✔ | 2 | 5 | 2 | ✘ |
| 1LWD-MN-2 | MN | Mn²⁺ | D2 | ASP. | ASP.HOH.ICT. | ✔ | 2 | 5 | 2 | ✘ |
| 2ALY-MN-1 | MN | Mn²⁺ | E2 | GLU. | GLU. | ✘ | 2 | 2 | 2 | ✔ |
| 2ALY-MN-2 | MN | Mn²⁺ | E2 | GLU. | GLU. | ✘ | 2 | 2 | 2 | ✘ |
| 1ZQL-MN-1 | MN | Mn²⁺ | D1G1 | ASP.DG. | ASP.DG. | ✘ | 2 | 2 | 2 | ✘ |
| 1ZQL-MN-2 | MN | Mn²⁺ | I1T2V1 | DT.ILE.THR.VAL. | DT.HOH.ILE.THR.VAL. | ✘ | 4 | 5 | 2 | ✔ |
| 3O1U-FE-1 | FE | Fe³⁺ | D1X1 | ASP.MDV. | ASP.HOH.MDV.SIN. | ✘ | 2 | 4 | 2 | ✔ |
| 4DI0-FE-1 | FE | Fe³⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 2 | ✘ |
| 4DI0-FE-2 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 4DI0-FE-3 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✔ |
| 3RBC-FE-1 | FE | Fe³⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 3RBC-FE-2 | FE | Fe³⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 3MPS-FE-5 | FE | Fe³⁺ | E4 | GLU. | GLU.HOH. | ✔ | 4 | 5 | 2 | ✘ |
| 3MPS-FE-6 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 3MPS-FE-7 | FE | Fe³⁺ | E4 | GLU. | GLU. | ✔ | 4 | 4 | 2 | ✘ |
| 3MPS-FE-8 | FE | Fe³⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 2 | ✘ |
| 2HR5-FE-1 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 2HR5-FE-2 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 2HR5-FE-3 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✔ |
| 2HR5-FE-4 | FE | Fe³⁺ | E3 | GLU. | GLU. | ✔ | 3 | 3 | 2 | ✘ |