| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5MUA-CA-4 | CA | Ca²⁺ | D3S1 | ASP.SER. | ASP.E64.HOH.SER. | ✔ | 4 | 6 | 2 | ✔ |
| 5MVV-CA-1 | CA | Ca²⁺ | A1D1E1G1 | ALA.ASP.GLU.GLY. | ALA.ASP.GLU.GLY.HOH. | ✘ | 4 | 6 | 2 | ✔ |
| 5MWK-CA-1 | CA | Ca²⁺ | D1E3S1X1 | ASP.GLU.RAM.SER. | ASP.GLU.RAM.SER. | ✘ | 6 | 6 | 2 | ✔ |
| 5NEY-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NEY-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASP.GLU.ZDC. | ✔ | 5 | 5 | 2 | ✘ |
| 5NEY-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NEY-CA-4 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NF0-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NF0-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NF0-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NF0-CA-4 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NES-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NES-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NES-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NES-CA-4 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NH8-CA-1 | CA | Ca²⁺ | A2 | ALA. | ALA.HOH. | ✔ | 2 | 7 | 2 | ✔ |
| 5NH8-CA-2 | CA | Ca²⁺ | A2 | ALA. | ALA.HOH. | ✔ | 2 | 7 | 2 | ✘ |
| 5NGQ-CA-1 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASP.GLU.ZDC. | ✔ | 5 | 5 | 2 | ✘ |
| 5NGQ-CA-2 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASN.ASP.GLY.ZDC. | ✔ | 5 | 6 | 2 | ✘ |
| 5NGQ-CA-3 | CA | Ca²⁺ | D2G1N2 | ASN.ASP.GLY. | ASP.GLU.ZDC. | ✔ | 5 | 5 | 2 | ✘ |