| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1O9I-CA-2 | CA | Ca²⁺ | D2G1N1S1 | ASN.ASP.GLY.SER. | ASN.ASP.GLY.HOH.SER. | ✔ | 5 | 6 | 2 | ✔ |
| 1O9I-CA-3 | CA | Ca²⁺ | D2G1N1S1 | ASN.ASP.GLY.SER. | ASN.ASP.GLY.HOH.SER. | ✔ | 5 | 6 | 2 | ✘ |
| 1O9I-CA-4 | CA | Ca²⁺ | D2G1N1S1 | ASN.ASP.GLY.SER. | ASN.ASP.GLY.HOH.SER. | ✔ | 5 | 6 | 2 | ✘ |
| 1O9I-CA-5 | CA | Ca²⁺ | D2G1N1S1 | ASN.ASP.GLY.SER. | ASN.ASP.GLY.HOH.SER. | ✔ | 5 | 6 | 2 | ✘ |
| 1O9I-CA-6 | CA | Ca²⁺ | D2G1N1S1 | ASN.ASP.GLY.SER. | ASN.ASP.GLY.HOH.SER. | ✔ | 5 | 6 | 2 | ✔ |
| 5FJE-NA-1 | NA | Na⁺ | A1N1 | ALA.ASN. | ALA.ASN.HOH. | ✔ | 2 | 6 | 2 | ✔ |
| 5FJE-NA-2 | NA | Na⁺ | A1N1 | ALA.ASN. | ALA.ASN.HOH. | ✔ | 2 | 6 | 2 | ✘ |
| 5FJE-NA-3 | NA | Na⁺ | A1N1 | ALA.ASN. | ALA.ASN.HOH. | ✔ | 2 | 6 | 2 | ✘ |
| 5FJE-NA-4 | NA | Na⁺ | A1N1 | ALA.ASN. | ALA.ASN.HOH. | ✔ | 2 | 6 | 2 | ✘ |
| 2PPE-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 2PPD-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS.NO. | ✔ | 3 | 4 | 2 | ✘ |
| 2PPD-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 2PPC-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS.NO2. | ✔ | 3 | 4 | 2 | ✘ |
| 2PPC-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS.NO2. | ✔ | 3 | 4 | 2 | ✘ |
| 2PP8-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 2PP8-CU-2 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 2PP8-CU-3 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 2PP7-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✔ |
| 2PPA-CU-1 | CU | Cu²⁺ | H3 | HIS. | HIS. | ✔ | 3 | 3 | 2 | ✘ |
| 2HH7-CU-1 | CU | Cu⁺ | C2 | CYS. | CYS. | ✔ | 2 | 2 | 2 | ✔ |