| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3IJ4-CS-1 | CS | Cs⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 3 | ✔ |
| 3IJ4-CS-2 | CS | Cs⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 3 | ✔ |