| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4WFH-CA-1 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY.HOH. | ✔ | 3 | 5 | 2 | ✘ |
| 5K5S-CA-1 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY.HOH. | ✔ | 3 | 4 | 2 | ✔ |
| 5K5S-CA-2 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✔ |
| 6OLY-CA-3 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-4 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-7 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-8 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-11 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✔ |
| 6OLY-CA-12 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-15 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6OLY-CA-16 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 1FZG-CA-2 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY.HOH. | ✘ | 3 | 4 | 2 | ✘ |
| 1FZF-CA-1 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✘ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-2 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-4 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-6 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-7 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-9 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-11 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5N-CA-13 | CA | Ca²⁺ | D1E1G1 | ASP.GLU.GLY. | ASP.GLU.GLY. | ✔ | 3 | 3 | 2 | ✘ |