| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4TOE-K-5 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |
| 3IS7-K-6 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 4 | ✘ |
| 3ISE-K-1 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |
| 3ISF-K-3 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |
| 3ISF-K-4 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |
| 3ISF-K-5 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |
| 3ISF-K-6 | K | K⁺ | N1Q3 | ASN.GLN. | ASN.GLN. | ✔ | 4 | 4 | 3 | ✘ |