| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6BFK-NA-1 | NA | Na⁺ | Q1W1 | GLN.TRP. | GLN.TRP. | ✘ | 2 | 2 | 2 | ✔ |
| 6BH9-NA-1 | NA | Na⁺ | Q1W1 | GLN.TRP. | GLN.TRP. | ✘ | 2 | 2 | 2 | ✔ |