| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4M5P-NA-1 | NA | Na⁺ | N1Q1 | ASN.GLN. | ASN.GLN.HOH. | ✔ | 2 | 6 | 2 | ✔ |
| 4M5P-NA-2 | NA | Na⁺ | N1Q1 | ASN.GLN. | ASN.GLN.HOH. | ✔ | 2 | 6 | 2 | ✘ |
| 3UPW-NA-1 | NA | Na⁺ | N1Q1 | ASN.GLN. | ASN.GLN.HOH. | ✔ | 2 | 4 | 2 | ✘ |
| 3UPW-NA-2 | NA | Na⁺ | N1Q1 | ASN.GLN. | ASN.GLN.HOH. | ✔ | 2 | 4 | 2 | ✘ |