| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3X1F-CU-1 | CU | Cu²⁺ | M3 | MET. | MET. | ✔ | 3 | 3 | 3 | ✔ |
| 4YSA-CU-1 | CU | Cu²⁺ | M3 | MET. | MET. | ✔ | 3 | 3 | 3 | ✘ |
| 4YSD-CU-1 | CU | Cu²⁺ | M3 | MET. | MET. | ✔ | 3 | 3 | 3 | ✘ |
| 5YTL-CU-1 | CU | Cu²⁺ | M3 | MET. | MET. | ✔ | 3 | 3 | 3 | ✘ |