| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4RU3-CA-1 | CA | Ca²⁺ | E3N3 | ASN.GLU. | ASN.GLU. | ✔ | 6 | 6 | 3 | ✔ |
| 4UB4-CA-1 | CA | Ca²⁺ | C1D3 | ASP.DC. | ASP.DC.DGT.HOH. | ✘ | 4 | 6 | 2 | ✘ |
| 4UBC-CA-1 | CA | Ca²⁺ | C1D3 | ASP.DC. | 8DG.ASP.DC.HOH. | ✘ | 4 | 6 | 2 | ✘ |
| 4ZET-CA-1 | CA | Ca²⁺ | D1E2N2X1 | ASN.ASP.GLU.MAN. | ASN.ASP.GLU.MAN. | ✘ | 6 | 6 | 2 | ✔ |
| 4ZKU-CA-1 | CA | Ca²⁺ | N3Q3 | ASN.GLN. | ASN.GLN. | ✔ | 6 | 6 | 3 | ✘ |
| 4ZML-CA-1 | CA | Ca²⁺ | E2 | GLU. | GLU.HOH. | ✔ | 2 | 6 | 2 | ✔ |
| 4ZXQ-CA-1 | CA | Ca²⁺ | N3Q3 | ASN.GLN. | ASN.GLN. | ✔ | 6 | 6 | 3 | ✔ |
| 5A3O-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.MMA. | ✔ | 5 | 6 | 2 | ✘ |
| 5A3O-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.MMA. | ✔ | 5 | 6 | 2 | ✘ |
| 5A3O-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.MMA. | ✔ | 5 | 6 | 2 | ✘ |
| 5A3O-CA-4 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.MMA. | ✔ | 5 | 6 | 2 | ✘ |
| 5A6Z-CA-1 | CA | Ca²⁺ | D3E1X1 | ASP.FUC.GLU. | ASP.FUC.GLU. | ✘ | 5 | 5 | 2 | ✔ |
| 5A6Z-CA-2 | CA | Ca²⁺ | D2G1N2X1 | ASN.ASP.FUC.GLY. | ASN.ASP.FUC.GLY. | ✘ | 6 | 6 | 3 | ✔ |
| 5A6Z-CA-3 | CA | Ca²⁺ | D3E1X1 | ASP.FUC.GLU. | ASP.FUC.GLU. | ✘ | 5 | 5 | 2 | ✔ |
| 5A6Z-CA-4 | CA | Ca²⁺ | D2G1N2X1 | ASN.ASP.FUC.GLY. | ASN.ASP.FUC.GLY. | ✘ | 6 | 6 | 3 | ✔ |
| 5A6Z-CA-5 | CA | Ca²⁺ | D3E1X1 | ASP.FUC.GLU. | ASP.FUC.GLU. | ✘ | 5 | 5 | 2 | ✔ |
| 5A6Z-CA-6 | CA | Ca²⁺ | D2G1N2X1 | ASN.ASP.FUC.GLY. | ASN.ASP.FUC.GLY. | ✘ | 6 | 6 | 3 | ✔ |
| 5A6Z-CA-7 | CA | Ca²⁺ | D3E1X1 | ASP.FUC.GLU. | ASP.FUC.GLU. | ✘ | 5 | 5 | 2 | ✔ |
| 5A6Z-CA-8 | CA | Ca²⁺ | D2G1N2X1 | ASN.ASP.FUC.GLY. | ASN.ASP.FUC.GLY. | ✘ | 6 | 6 | 3 | ✔ |
| 5A6Y-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.GOL.MAN. | ✔ | 5 | 7 | 2 | ✘ |