| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4QWL-MG-2 | MG | Mg²⁺ | D1N1Q1 | ASN.ASP.GLN. | ASN.ASP.GLN.HOH. | ✘ | 3 | 4 | 2 | ✘ |
| 5D0V-MG-1 | MG | Mg²⁺ | D1N1Q1 | ASN.ASP.GLN. | ASN.ASP.GLN. | ✘ | 3 | 3 | 2 | ✘ |
| 5B5N-BA-5 | BA | Ba²⁺ | D1N1Q1 | ASN.ASP.GLN. | ASN.ASP.GLN. | ✔ | 3 | 3 | 2 | ✔ |