| 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6H6M-NA-1 | NA | Na⁺ | D1G1K1N1 | ASN.ASP.GLY.LYS. | ASN.ASP.GLY.HOH.LYS. | ✘ | 4 | 5 | 2 | ✔ |
| 6H6M-NA-2 | NA | Na⁺ | D1G1K1N1 | ASN.ASP.GLY.LYS. | ASN.ASP.GLY.HOH.LYS. | ✘ | 4 | 5 | 2 | ✘ |
| 6GVP-NA-1 | NA | Na⁺ | N1T1V1 | ASN.THR.VAL. | ASN.HOH.THR.VAL. | ✔ | 3 | 6 | 2 | ✘ |
| 6GVP-NA-2 | NA | Na⁺ | N1T1V1 | ASN.THR.VAL. | ASN.HOH.THR.VAL. | ✔ | 3 | 6 | 2 | ✘ |
| 6GVP-NA-3 | NA | Na⁺ | N1T1V1 | ASN.THR.VAL. | ASN.HOH.THR.VAL. | ✔ | 3 | 6 | 2 | ✘ |
| 6GVP-NA-4 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 5 | 2 | ✔ |
| 6GVP-NA-5 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 5 | 2 | ✔ |
| 6GVP-NA-6 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 5 | 2 | ✔ |
| 6GVR-NA-1 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 4 | 2 | ✔ |
| 6GVR-NA-2 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 4 | 2 | ✔ |
| 6GVR-NA-3 | NA | Na⁺ | G1X1 | GLY.RAM. | GLY.HOH.RAM. | ✘ | 2 | 4 | 2 | ✔ |
| 6CLY-NA-1 | NA | Na⁺ | G1I1T1V1 | DG.ILE.THR.VAL. | DG.HOH.ILE.THR.VAL. | ✘ | 4 | 5 | 2 | ✘ |
| 6CLY-NA-2 | NA | Na⁺ | C1K1L1V1 | DC.LEU.LYS.VAL. | DC.HOH.LEU.LYS.VAL. | ✘ | 4 | 6 | 2 | ✘ |
| 6D0W-NA-1 | NA | Na⁺ | E2Y2 | GLU.TYR. | GLU.TYR. | ✔ | 4 | 4 | 2 | ✔ |
| 6D0W-NA-2 | NA | Na⁺ | E2Y2 | GLU.TYR. | GLU.TYR. | ✔ | 4 | 4 | 2 | ✔ |
| 6D1P-NA-1 | NA | Na⁺ | D1S1T1 | ASP.SER.THR. | ASP.HOH.SER.THR. | ✔ | 3 | 4 | 2 | ✔ |
| 6D1P-NA-2 | NA | Na⁺ | D1S1 | ASP.SER. | ASP.HOH.SER. | ✔ | 2 | 3 | 2 | ✘ |
| 1TXK-NA-1 | NA | Na⁺ | S2 | SER. | HOH.SER. | ✔ | 2 | 4 | 2 | ✔ |
| 1UD5-RB-1 | RB | Rb⁺ | N2 | ASN. | ASN. | ✔ | 2 | 2 | 2 | ✔ |
| 1UD5-RB-2 | RB | Rb⁺ | N2 | ASN. | ASN. | ✔ | 2 | 2 | 2 | ✘ |