| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5Z9T-NA-1 | NA | Na⁺ | E3N1X1 | ASN.GLU.LGU. | ASN.GLU.LGU. | ✘ | 5 | 5 | 2 | ✔ |
| 7BZ0-CA-1 | CA | Ca²⁺ | E3N1X1 | ASN.GLU.LGU. | ASN.GLU.HOH.LGU. | ✘ | 5 | 6 | 2 | ✔ |