| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6PT6-CA-1 | CA | Ca²⁺ | D3Q1X1 | ASP.DGS.GLN. | ASP.DGS.GLN. | ✘ | 5 | 5 | 2 | ✔ |
| 6PT6-CA-2 | CA | Ca²⁺ | D3Q1X1 | ASP.DGS.GLN. | ASP.DGS.GLN. | ✘ | 5 | 5 | 2 | ✔ |
| 7LJ2-CA-1 | CA | Ca²⁺ | D3Q1X1 | ASP.GLN.L6S. | ASP.GLN.L6S. | ✘ | 5 | 5 | 2 | ✔ |
| 7SNO-NA-1 | NA | Na⁺ | D3Q1X1 | ASP.GLN.L6S. | ASP.GLN.L6S. | ✘ | 5 | 5 | 2 | ✔ |