| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2QSW-ZN-1 | ZN | Zn²⁺ | E4 | GLU. | GLU. | ✔ | 4 | 4 | 2 | ✔ |
| 2QSW-ZN-2 | ZN | Zn²⁺ | E4 | GLU. | GLU. | ✔ | 4 | 4 | 2 | ✘ |
| 2EK0-ZN-2 | ZN | Zn²⁺ | E4 | GLU. | GLU.HOH. | ✔ | 4 | 6 | 4 | ✔ |
| 1LU0-ZN-1 | ZN | Zn²⁺ | E4 | GLU. | GLU. | ✔ | 4 | 4 | 4 | ✔ |
| 5WLK-ZN-1 | ZN | Zn²⁺ | E4 | GLU. | GLU. | ✔ | 4 | 4 | 4 | ✔ |