| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3E50-ZN-1 | ZN | Zn²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✘ | 2 | 2 | 2 | ✔ |
| 3SEX-NI-1 | NI | Ni²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✔ |
| 3SEX-NI-2 | NI | Ni²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✘ |
| 3SET-NI-1 | NI | Ni²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✔ |
| 3SET-NI-2 | NI | Ni²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✘ |
| 3SES-CU-1 | CU | Cu²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✔ |
| 3SES-CU-2 | CU | Cu²⁺ | E1H1 | GLU.HIS. | GLU.HIS.HOH. | ✔ | 2 | 4 | 2 | ✘ |
| 2W5E-CD-1 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✔ |
| 2W5E-CD-2 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 2W5E-CD-3 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 2W5E-CD-4 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 2W5E-CD-5 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 2W5E-CD-6 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HIS. | ✔ | 2 | 2 | 2 | ✘ |
| 4Q9M-CD-1 | CD | Cd²⁺ | E1H1 | GLU.HIS. | GLU.HOH. | ✔ | 2 | 4 | 2 | ✔ |