| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5VOL-CA-4 | CA | Ca²⁺ | D3Q1 | ASP.GLN. | ASP.GLN.HOH. | ✔ | 4 | 6 | 2 | ✘ |
| 5VS1-CA-1 | CA | Ca²⁺ | A1D3 | ASP.DA. | ASP.DA.TTP. | ✘ | 4 | 5 | 2 | ✔ |
| 5VS1-CA-2 | CA | Ca²⁺ | C1I1T1V1 | DC.ILE.THR.VAL. | DC.ILE.THR.VAL. | ✘ | 4 | 4 | 2 | ✔ |
| 5VS1-CA-3 | CA | Ca²⁺ | C1K1L1V1 | DC.LEU.LYS.VAL. | DC.LEU.LYS.VAL. | ✘ | 4 | 4 | 2 | ✘ |
| 5VRX-CA-1 | CA | Ca²⁺ | C1D3 | ASP.DC. | ASP.DC.HOH.TTP. | ✘ | 4 | 6 | 2 | ✔ |
| 5VRX-CA-2 | CA | Ca²⁺ | C1I1T1V1 | DC.ILE.THR.VAL. | DC.HOH.ILE.THR.VAL. | ✘ | 4 | 6 | 2 | ✔ |
| 5VRX-CA-3 | CA | Ca²⁺ | C1K1L1V1 | DC.LEU.LYS.VAL. | DC.HOH.LEU.LYS.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 5VRW-CA-1 | CA | Ca²⁺ | C1D3 | ASP.DC. | ASP.DC.TTP. | ✘ | 4 | 5 | 2 | ✘ |
| 5VRW-CA-2 | CA | Ca²⁺ | C1I1T1V1 | DC.ILE.THR.VAL. | DC.HOH.ILE.THR.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 5VRW-CA-3 | CA | Ca²⁺ | C1K1L1V1 | DC.LEU.LYS.VAL. | DC.LEU.LYS.VAL. | ✘ | 4 | 4 | 2 | ✘ |
| 5OFX-CA-1 | CA | Ca²⁺ | D2N1T1X1Y1 | ASN.ASP.GLA.THR.TYR. | ASN.ASP.GLA.THR.TYR. | ✘ | 6 | 6 | 2 | ✔ |
| 5NUR-CA-1 | CA | Ca²⁺ | N2X1 | ASN.KDO. | ASN.KDO. | ✘ | 3 | 3 | 2 | ✔ |
| 5NUR-CA-2 | CA | Ca²⁺ | N3X1 | ASN.KDO. | ASN.KDO. | ✘ | 4 | 4 | 2 | ✔ |
| 5NUR-CA-3 | CA | Ca²⁺ | N2X1 | ASN.KDO. | ASN.KDO. | ✘ | 3 | 3 | 2 | ✔ |
| 5MAZ-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |
| 5MAZ-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |
| 5MAZ-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |
| 5MAZ-CA-4 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |
| 5MAY-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |
| 5MAY-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.FUL.GLY. | ✔ | 5 | 6 | 2 | ✘ |