| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6U66-CA-1 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✔ |
| 6U66-CA-2 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✘ |
| 6U66-CA-3 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✘ |
| 1C3H-CA-1 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✔ |
| 1C3H-CA-2 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✘ |
| 1C3H-CA-3 | CA | Ca²⁺ | D3N1Q1V1 | ASN.ASP.GLN.VAL. | ASN.ASP.GLN.VAL. | ✔ | 6 | 6 | 2 | ✘ |