| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6U5P-CA-4 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5P-CA-6 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5P-CA-9 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5P-CA-12 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6U5P-CA-14 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6UWN-CA-3 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 6UWN-CA-11 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU. | ✔ | 3 | 3 | 2 | ✘ |
| 7VUU-CA-1 | CA | Ca²⁺ | D1E1R1 | ARG.ASP.GLU. | ARG.ASP.GLU.HOH. | ✔ | 3 | 6 | 2 | ✔ |