| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5ZL1-CA-1 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.HOH.PRO. | ✔ | 4 | 5 | 2 | ✔ |
| 5ZL1-CA-2 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.HOH.PRO. | ✔ | 4 | 5 | 2 | ✘ |
| 5ZL1-CA-3 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.PRO. | ✔ | 4 | 4 | 2 | ✘ |
| 5ZL1-CA-4 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.PRO. | ✔ | 4 | 4 | 2 | ✘ |
| 5ZL1-CA-5 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.PRO. | ✔ | 4 | 4 | 2 | ✘ |
| 5ZL1-CA-6 | CA | Ca²⁺ | A2E1P1 | ALA.GLU.PRO. | ALA.GLU.PRO. | ✔ | 4 | 4 | 2 | ✘ |