| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4H1T-NA-2 | NA | Na⁺ | E2I2S2 | GLU.ILE.SER. | GLU.ILE.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5MIW-NA-1 | NA | Na⁺ | E2I2S2 | GLU.ILE.SER. | GLU.ILE.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5MIW-NA-4 | NA | Na⁺ | E2I2S2 | GLU.ILE.SER. | GLU.ILE.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5EFO-NA-1 | NA | Na⁺ | E2I2S2 | GLU.ILE.SER. | GLU.ILE.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5EFO-NA-3 | NA | Na⁺ | E2I2S2 | GLU.ILE.SER. | GLU.ILE.SER. | ✔ | 6 | 6 | 2 | ✘ |