| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4YB5-K-1 | K | K⁺ | N1Q1R1 | ARG.ASN.GLN. | ARG.ASN.GLN. | ✔ | 3 | 3 | 2 | ✔ |
| 4YB5-K-2 | K | K⁺ | N1Q1R1 | ARG.ASN.GLN. | ARG.ASN.GLN. | ✔ | 3 | 3 | 2 | ✔ |
| 4YB5-K-3 | K | K⁺ | N1Q1R1 | ARG.ASN.GLN. | ARG.ASN.GLN. | ✔ | 3 | 3 | 2 | ✔ |
| 4YB5-K-4 | K | K⁺ | N1Q1R1 | ARG.ASN.GLN. | ARG.ASN.GLN. | ✔ | 3 | 3 | 2 | ✘ |
| 4YB5-K-5 | K | K⁺ | N1Q1R1 | ARG.ASN.GLN. | ARG.ASN.GLN. | ✔ | 3 | 3 | 2 | ✘ |