| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4GVL-CA-1 | CA | Ca²⁺ | E1N2Q1T2 | ASN.GLN.GLU.THR. | ASN.GLN.GLU.THR. | ✔ | 6 | 6 | 2 | ✔ |
| 4GVL-CA-2 | CA | Ca²⁺ | E1N2Q1T2 | ASN.GLN.GLU.THR. | ASN.GLN.GLU.THR. | ✔ | 6 | 6 | 2 | ✘ |
| 4GX0-CA-1 | CA | Ca²⁺ | E1N2Q1T2 | ASN.GLN.GLU.THR. | ASN.GLN.GLU.THR. | ✔ | 6 | 6 | 2 | ✔ |
| 4GX0-CA-2 | CA | Ca²⁺ | E1N2Q1T2 | ASN.GLN.GLU.THR. | ASN.GLN.GLU.THR. | ✔ | 6 | 6 | 2 | ✔ |