| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1SAW-MG-1 | MG | Mg²⁺ | K2N2 | ASN.LYS. | ASN.HOH.LYS. | ✔ | 4 | 6 | 2 | ✘ |
| 6FOH-MG-1 | MG | Mg²⁺ | K2N2 | ASN.LYS. | ASN.HOH.LYS. | ✔ | 4 | 6 | 2 | ✔ |
| 6FOG-MG-1 | MG | Mg²⁺ | K2N2 | ASN.LYS. | ASN.HOH.LYS. | ✔ | 4 | 6 | 2 | ✘ |
| 6SBJ-MG-1 | MG | Mg²⁺ | K2N2 | ASN.LYS. | ASN.HOH.LYS. | ✔ | 4 | 6 | 2 | ✔ |