| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6T1D-CA-1 | CA | Ca²⁺ | D2N1P1S1X1 | ASN.ASP.GLA.PRO.SER. | ASN.ASP.GLA.PRO.SER. | ✘ | 6 | 6 | 2 | ✔ |
| 6T1D-CA-3 | CA | Ca²⁺ | D2N1P1S1X1 | ASN.ASP.GLA.PRO.SER. | ASN.ASP.GLA.PRO.SER. | ✘ | 6 | 6 | 2 | ✔ |