| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4NC7-NI-1 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✔ |
| 4NC7-NI-2 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✘ |
| 4NC7-NI-3 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✘ |
| 4NC7-NI-4 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✘ |
| 4NC8-NI-1 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.LEU.PHE. | ✔ | 5 | 5 | 2 | ✘ |
| 4NC8-NI-2 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.LEU.PHE. | ✔ | 5 | 5 | 2 | ✘ |
| 4NC8-NI-3 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✘ |
| 4NC8-NI-4 | NI | Ni²⁺ | D1F1L1N2 | ASN.ASP.LEU.PHE. | ASN.ASP.HOH.LEU.PHE. | ✔ | 5 | 6 | 2 | ✘ |