| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3LCN-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 3LCN-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 3LJM-CA-1 | CA | Ca²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 3H5G-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 3H5G-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 4 | 2 | ✘ |
| 4DGU-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 4 | 2 | ✔ |
| 4DGU-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 4 | 2 | ✔ |
| 4DGU-ZN-3 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 4DGU-ZN-4 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 2VK0-ZN-3 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✔ |
| 2VK0-ZN-4 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 2VK0-ZN-5 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 2VRZ-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 2VRZ-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 2VS0-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 2VS0-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 4HTM-ZN-2 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 4HTM-ZN-3 | ZN | Zn²⁺ | E2 | GLU. | GLU. | ✔ | 2 | 2 | 2 | ✘ |
| 4MTR-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |
| 4PV5-ZN-1 | ZN | Zn²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 3 | 2 | ✘ |