| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1WRO-BA-5 | BA | Ba²⁺ | H3 | HIS. | GLU.GLY. | ✔ | 3 | 2 | 2 | ✘ |
| 1WRO-BA-6 | BA | Ba²⁺ | H3 | HIS. | GLU.GLY. | ✔ | 3 | 2 | 2 | ✘ |
| 1WRO-BA-9 | BA | Ba²⁺ | H3 | HIS. | GLU.GLY. | ✔ | 3 | 2 | 2 | ✘ |