| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4EFC-MG-3 | MG | Mg²⁺ | D2L1S1 | ASP.LEU.SER. | ASP.HOH.LEU.SER. | ✔ | 4 | 5 | 2 | ✘ |
| 4EFC-MG-4 | MG | Mg²⁺ | D2L1S1 | ASP.LEU.SER. | ASP.HOH.LEU.SER. | ✔ | 4 | 5 | 2 | ✘ |