| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2FGQ-CA-1 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✔ |
| 2FGQ-CA-2 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✘ |
| 2FGQ-CA-3 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✘ |
| 1E54-CA-1 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.LEU. | ✔ | 5 | 5 | 2 | ✘ |
| 1E54-CA-2 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.LEU. | ✔ | 5 | 5 | 2 | ✘ |
| 1E54-CA-3 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.LEU. | ✔ | 5 | 5 | 2 | ✘ |
| 2FGR-CA-1 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✔ |
| 2FGR-CA-2 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✘ |
| 2FGR-CA-3 | CA | Ca²⁺ | D1E1G1L1N1 | ASN.ASP.GLU.GLY.LEU. | ASN.ASP.GLU.GLY.HOH.LEU. | ✔ | 5 | 6 | 2 | ✘ |