| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1ETE-ZN-1 | ZN | Zn²⁺ | D1E1P1 | ASP.GLU.PRO. | ASP.GLU.PRO. | ✔ | 3 | 3 | 2 | ✔ |
| 1H1V-CA-1 | CA | Ca²⁺ | D1E1P1 | ASP.GLU.PRO. | ASP.GLU.HOH.PRO. | ✘ | 3 | 4 | 2 | ✔ |