| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5O4Q-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 5MKM-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6FC7-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6FC7-CU-2 | CU | Cu²⁺ | H2 | HIS. | HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 6C40-CU-1 | CU | Cu²⁺ | D2 | ASP. | ASP. | ✔ | 2 | 2 | 2 | ✔ |
| 4YEA-CU-1 | CU | Cu²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 5T7L-PT-1 | PT | Pt²⁺ | C2 | CYS. | CYS. | ✘ | 2 | 2 | 2 | ✔ |
| 5FTZ-CU-1 | CU | Cu²⁺ | D2 | ASP. | ASP. | ✔ | 2 | 2 | 2 | ✔ |
| 4WTQ-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 4WTQ-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 4WTQ-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 4W1T-CU-1 | CU | Cu²⁺ | H3 | HIS. | HOH. | ✔ | 3 | 2 | 2 | ✔ |
| 4W1T-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 4W1T-CU-3 | CU | Cu²⁺ | H3 | HIS. | HOH. | ✔ | 3 | 2 | 2 | ✘ |
| 4W7R-CU-1 | CU | Cu²⁺ | H4 | HIS. | HIS. | ✔ | 4 | 4 | 2 | ✔ |
| 4W76-CU-1 | CU | Cu²⁺ | D2 | ASP. | ASP. | ✔ | 2 | 2 | 2 | ✔ |
| 4W77-CU-1 | CU | Cu²⁺ | D2 | ASP. | ASP. | ✔ | 2 | 2 | 2 | ✔ |
| 6KNF-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6KNF-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6KNF-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |