| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3FC3-NA-2 | NA | Na⁺ | D1G1N1T1 | ASN.ASP.DG.DT. | ASN.ASP.DG.DT.HOH. | ✘ | 4 | 6 | 2 | ✘ |
| 3FC5-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3FGG-ZN-1 | ZN | Zn²⁺ | H2 | HIS. | HIS. | ✔ | 2 | 2 | 2 | ✔ |
| 3FQ9-ZN-1 | ZN | Zn²⁺ | H3 | HIS. | HOH. | ✔ | 3 | 3 | 3 | ✘ |
| 3HXS-ZN-1 | ZN | Zn²⁺ | D1E1 | ASP.GLU. | ASP.GLU.HOH. | ✔ | 2 | 3 | 2 | ✔ |
| 3HXS-ZN-2 | ZN | Zn²⁺ | D1E2 | ASP.GLU. | ASP.GLU. | ✔ | 3 | 3 | 2 | ✔ |
| 3I9F-ZN-1 | ZN | Zn²⁺ | D3 | ASP. | ASP.HOH. | ✔ | 3 | 4 | 3 | ✔ |
| 3HKN-ZN-1 | ZN | Zn²⁺ | H3X1 | HIS.Z3K. | HIS.Z3K. | ✘ | 4 | 4 | 2 | ✔ |
| 3HKT-ZN-1 | ZN | Zn²⁺ | H3X1 | 1SD.HIS. | 1SD.HIS. | ✘ | 4 | 4 | 2 | ✔ |
| 3HJW-K-1 | K | K⁺ | T1X1 | FHU.THR. | FHU.HOH.THR. | ✘ | 2 | 4 | 2 | ✔ |
| 3HNI-ZN-1 | ZN | Zn²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 3HNI-ZN-2 | ZN | Zn²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 3HSN-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3KB1-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✔ |
| 3K3Q-ZN-1 | ZN | Zn²⁺ | E1Y1 | GLU.TYR. | GLU.TYR. | ✘ | 2 | 2 | 2 | ✔ |
| 3JT5-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3JT6-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3JT8-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3JT9-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |
| 3JT3-ZN-1 | ZN | Zn²⁺ | C4 | CYS. | CYS. | ✔ | 4 | 4 | 2 | ✘ |