| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1AQ8-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6TFO-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 6TFO-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6YO5-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 6YO5-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 6GT2-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6GT2-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6GT2-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6GCG-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6GCG-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6GCG-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 6YZF-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 6YZF-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7R4Z-CU-1 | CU | Cu⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7R4Z-CU-2 | CU | Cu⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7R4V-CU-1 | CU | Cu⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 7R4V-CU-2 | CU | Cu⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7PU0-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7PU0-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 7PU0-CU-5 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |