| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4V4M-CA-6 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-12 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✔ |
| 4V4M-CA-15 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-18 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-32 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-33 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-47 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-53 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-56 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-63 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-78 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 4V4M-CA-91 | CA | Ca²⁺ | T5 | THR. | HOH.THR. | ✔ | 5 | 7 | 5 | ✘ |
| 6IUE-HG-1 | HG | Hg²⁺ | T5 | DT. | DT. | ✔ | 5 | 5 | 2 | ✔ |