| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4XQB-ZN-1 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 5BWK-ZN-3 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |
| 5KB0-PB-1 | PB | Pb²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 5VMD-ZN-2 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |
| 5VMD-ZN-5 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |
| 1DU3-ZN-1 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 6W9C-ZN-1 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 6MCD-PB-1 | PB | Pb²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 1QW5-ZN-1 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✘ |
| 7BGM-ZN-1 | ZN | Zn²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |
| 7BGM-ZN-2 | ZN | Zn²⁺ | C3 | CYS. | ASP.HOH. | ✔ | 3 | 5 | 2 | ✘ |
| 6XTM-AG-1 | AG | Ag⁺ | C3 | CYS. | CYS. | ✘ | 3 | 3 | 2 | ✔ |
| 3K7R-CU-1 | CU | Cu²⁺ | C3 | CYS. | 4SM.CYS. | ✔ | 3 | 3 | 3 | ✔ |
| 3K7R-CU-2 | CU | Cu²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 3 | ✘ |
| 2K1R-CU-1 | CU | Cu²⁺ | C3 | CYS. | CYS. | ✘ | 3 | 3 | 2 | ✔ |
| 1ZPS-CD-1 | CD | Cd²⁺ | C3 | CYS. | ASP.HOH. | ✔ | 3 | 5 | 2 | ✔ |
| 1ZPS-CD-2 | CD | Cd²⁺ | C3 | CYS. | ASP.HOH. | ✔ | 3 | 3 | 2 | ✘ |
| 2JSC-CD-1 | CD | Cd²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |
| 2JSC-CD-2 | CD | Cd²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✘ |
| 4G1A-CD-1 | CD | Cd²⁺ | C3 | CYS. | CYS. | ✔ | 3 | 3 | 2 | ✔ |