| Index | Ligand Name | Structure | PDB code | Compound Potency nM |
| 1 | lqq | X-ray structure of human CDK6-Vcyclin in complex with the inhibitor PD0332991 | 2euf | 15 |
| 2 | lqq | The X-ray co-crystal structure of human CDK6 and Palbociclib. | 5l2i | 40.1 |
| 3 | 6zv | The X-ray co-crystal structure of human CDK6 and Abemaciclib. | 5l2s | 83 |
| 4 | 0rs | CDK6 (monomeric) in complex with inhibitor | 4ez5 | 300 |
| 5 | ap9 | X-ray structure of human CDK6-Vcyclinwith the inhibitor aminopurvalanol | 2f2c | 450 |
| 6 | 6zz | The X-ray co-crystal structure of human CDK6 and Ribociclib. | 5l2t | 650 |
| 7 | fse | Crystal structure of a human cyclin-dependent kinase 6 complex with a flavonol inhibitor, fisetin | 1xo2 | 850 |