| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1G29-NA-1 | NA | Na⁺ | E1G1S1 | GLU.GLY.SER. | GLU.GLY.SER. | ✔ | 3 | 3 | 2 | ✔ |
| 1G29-NA-2 | NA | Na⁺ | E1G1S1 | GLU.GLY.SER. | GLU.GLY.SER. | ✔ | 3 | 3 | 2 | ✘ |
| 2Q04-CA-1 | CA | Ca²⁺ | E1G1S1 | GLU.GLY.SER. | GLU.GLY.SER. | ✔ | 3 | 3 | 2 | ✔ |