| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3DPG-CA-1 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✘ |
| 3DPG-CA-2 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✘ |
| 3DVO-CA-1 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✔ |
| 3DVO-CA-2 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✔ |
| 3N7B-CA-1 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✔ |
| 3N7B-CA-2 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.HOH. | ✘ | 3 | 5 | 2 | ✔ |
| 3MQ6-CA-1 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✘ |
| 3MQ6-CA-2 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 6 | 2 | ✘ |
| 7SS5-CA-1 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 5 | 2 | ✔ |
| 7SS5-CA-3 | CA | Ca²⁺ | C1D1F1 | ASP.DC.PHE. | ASP.DC.HOH.PHE. | ✘ | 3 | 5 | 2 | ✘ |