| PDB release date | 2018-10-10 |
| Number of PDB entries | 127525 |
| Number of biological assemblies | 198267 |
| Number of proteins | 441072 |
| Number of peptides | 13706 |
| Number of SCOPe domains | 188714 |
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| Number of protein-protein interaction interfaces | 433222 |
| Clusters at sequence similarity > 95% and interface residue contacts similarity > 50% | 81339 |
| Clusters at sequence similarity > 40% and interface residue contacts similarity > 50% | 64271 |
| Clusters at sequence similarity > 40% and interface area similarity > 50% | 53426 |
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| Number of domain-domain interaction interfaces | 198365 |
| Clusters at sequence similarity > 95% and interface residue contacts similarity > 50% | 36397 |
| Clusters at sequence similarity > 40% and interface residue contacts similarity > 50% | 27376 |
| Clusters at sequence similarity > 40% and interface area similarity > 50% | 23056 |
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| Number of all binding sites | 883690 |
| Clusters at sequence similarity > 95% and residue interface areas similarity > 50% | 116737 |
| Clusters at sequence similarity > 40% and residue interface areas similarity > 50% | 86468 |
| Clusters at sequence similarity > 40% and binding site area similarity > 50% | 73826 |
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| Number of protein-protein binding sites | 866444 |
| Clusters at sequence similarity > 95% and residue interface areas similarity > 50% | 113515 |
| Clusters at sequence similarity > 40% and residue interface areas similarity > 50% | 83993 |
| Clusters at sequence similarity > 40% and binding site area similarity > 50% | 71969 |
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| Number of protein-peptide binding sites | 17246 |
| Clusters at sequence similarity > 95% and residue interface areas similarity > 50% | 3529 |
| Clusters at sequence similarity > 40% and residue interface areas similarity > 50% | 2850 |
| Clusters at sequence similarity > 40% and binding site area similarity > 50% | 2388 |
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| Number of domain-domain binding sites | 396659 |
| Clusters at sequence similarity > 95% and residue interface areas similarity > 50% | 51809 |
| Clusters at sequence similarity > 40% and residue interface areas similarity > 50% | 36257 |
| Clusters at sequence similarity > 40% and binding site area similarity > 50% | 31445 |
