| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5IIN-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 5IIJ-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 5III-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 2BCR-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | HOH.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 2BCQ-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 2BCV-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 2BCS-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 3UQ0-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 5 | 2 | ✔ |
| 3C5F-NA-2 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 1XSP-NA-2 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✘ |
| 5IIM-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 5IIO-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 5IIL-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |
| 5IIK-NA-1 | NA | Na⁺ | A2I1S1 | ALA.DA.ILE.SER. | ALA.DA.HOH.ILE.SER. | ✘ | 4 | 6 | 2 | ✔ |