| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4ASL-CA-1 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4ASL-CA-2 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4D3W-CA-1 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4AF9-CA-1 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4AF9-CA-2 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4A3X-CA-1 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 4A3X-CA-2 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |
| 6Y98-CA-1 | CA | Ca²⁺ | D3E1N1X1 | ASN.ASP.GAL.GLU. | ASN.ASP.GAL.GLU. | ✘ | 6 | 6 | 2 | ✔ |