| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1C8G-CA-59 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 1C8G-CA-60 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 1GR3-CA-1 | CA | Ca²⁺ | D3 | ASP. | ASP.HOH. | ✔ | 3 | 6 | 3 | ✔ |
| 7KDD-CA-1 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 3 | ✔ |
| 6MRL-CA-1 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✔ |
| 6MRL-CA-2 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-3 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-4 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-5 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-6 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-7 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-8 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-9 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-10 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-11 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-12 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-13 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-14 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-15 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |
| 6MRL-CA-16 | CA | Ca²⁺ | D3 | ASP. | ASP. | ✔ | 3 | 3 | 2 | ✘ |