| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2PDO-ZN-1 | ZN | Zn²⁺ | E2H2 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 4 | 7 | 2 | ✔ |
| 2PDO-ZN-2 | ZN | Zn²⁺ | E2H2 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 4 | 7 | 2 | ✘ |