| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7A6B-NA-2 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-3 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-4 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-5 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-6 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-7 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |
| 7A6B-NA-8 | NA | Na⁺ | E3 | GLU. | GLU.HOH. | ✔ | 3 | 4 | 3 | ✘ |