| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1ZQD-CA-1 | CA | Ca²⁺ | I1T2V1 | DT.ILE.THR.VAL. | DT.HOH.ILE.THR.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 1ZQC-CA-1 | CA | Ca²⁺ | I1T2V1 | DT.ILE.THR.VAL. | DT.HOH.ILE.THR.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 7KTJ-CA-1 | CA | Ca²⁺ | I1T2V1 | DT.ILE.THR.VAL. | 8DG.ASP.HOH. | ✘ | 4 | 6 | 2 | ✔ |