| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5UQF-K-7 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQF-K-8 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQH-K-1 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQH-K-3 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQH-K-4 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQG-K-1 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQG-K-2 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQG-K-3 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5UQG-K-4 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 5URS-K-1 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 6MGU-K-1 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✔ |
| 6MGU-K-2 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 6MGU-K-3 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 6MGU-K-4 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✔ |
| 7MTU-K-1 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 7MTU-K-3 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.SER. | ✔ | 6 | 6 | 2 | ✘ |
| 7PJI-K-5 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.HOH.SER. | ✔ | 6 | 7 | 2 | ✘ |
| 7PJI-K-6 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.HOH.SER. | ✔ | 6 | 7 | 2 | ✘ |
| 7PJI-K-7 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.HOH.SER. | ✔ | 6 | 7 | 2 | ✘ |
| 7PJI-K-8 | K | K⁺ | C1E1G2H1S1 | CYS.GLU.GLY.HIS.SER. | CYS.GLU.GLY.HIS.HOH.SER. | ✔ | 6 | 7 | 2 | ✘ |