| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3UVF-CA-1 | CA | Ca²⁺ | C2E1G1 | DC.GLU.GLY. | DC.GLU.GLY.HOH. | ✘ | 4 | 5 | 3 | ✔ |
| 3EH8-CA-2 | CA | Ca²⁺ | C2E1G1 | DC.GLU.GLY. | DC.GLU.GLY.HOH. | ✘ | 4 | 6 | 3 | ✔ |