| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2AK1-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU.HOH. | ✘ | 2 | 3 | 2 | ✔ |
| 2X3Y-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU. | ✔ | 2 | 2 | 2 | ✘ |
| 2XBL-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 6GPZ-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 5I01-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU. | ✔ | 2 | 2 | 2 | ✔ |
| 5LU7-ZN-1 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU. | ✔ | 2 | 2 | 2 | ✘ |
| 5LU7-ZN-2 | ZN | Zn²⁺ | E1Q1 | GLN.GLU. | GLN.GLU.HOH. | ✔ | 2 | 3 | 2 | ✔ |