| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6ZP3-CA-1 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✔ |
| 6ZP3-CA-2 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✔ |
| 6ZLP-CA-1 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✔ |
| 6ZLP-CA-2 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✘ |
| 6RTJ-CA-1 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✔ |
| 6RTJ-CA-2 | CA | Ca²⁺ | D1Q1T2 | ASP.GLN.THR. | ASP.GLN.HOH.THR. | ✔ | 4 | 5 | 2 | ✘ |