| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6YFN-CA-1 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✔ |
| 6YFN-CA-2 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-3 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-4 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-5 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-6 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-7 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-8 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-9 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-10 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-11 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-12 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-13 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-14 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-15 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-16 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-17 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-18 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-19 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |
| 6YFN-CA-20 | CA | Ca²⁺ | Y3 | TYR. | TYR. | ✔ | 3 | 3 | 3 | ✘ |