| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1ORP-NA-1 | NA | Na⁺ | C1L1M1V1 | DC.LEU.MET.VAL. | DC.HOH.LEU.MET.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 1ORN-NA-1 | NA | Na⁺ | C1L1M1V1 | DC.LEU.MET.VAL. | DC.HOH.LEU.MET.VAL. | ✘ | 4 | 6 | 2 | ✔ |
| 1P59-NA-1 | NA | Na⁺ | C1L1M1V1 | DC.LEU.MET.VAL. | DC.LEU.MET.VAL. | ✘ | 4 | 4 | 2 | ✔ |