| Index | Ligand Name | Structure | PDB code | Compound Potency nM |
| 1 | 5y2 | Crystal structure of CK2 with compound 2 | 5h8b | 0.00491 |
| 2 | 5y3 | Crystal structure of CK2 with compound 7h | 5h8e | 0.00633 |
| 3 | 5y4 | Crystal structure of CK2 with compound 7b | 5h8g | 0.0482 |
| 4 | e1b | Crystal structure of human protein kinase CK2 in complex with the inhibitor CX-5011 | 3pe2 | 0.175 |
| 5 | 3ng | Crystal structure of human protein kinase CK2 alpha subunit in complex with the inhibitor CX-4945 | 3pe1 | 0.223 |
| 6 | fu9 | Crystal structure of human protein kinase CK2 alpha subunit in complex with the inhibitor CX-5279 | 3r0t | 0.91 |
| 7 | lnh | Casein kinase 2 in complex with AZ-Inhibitor | 3u4u | 3 |
| 8 | cck | Crystal structure of CK2alpha with pyradine derivertive | 3at4 | 8 |
| 9 | atk | Crystal structure of CK2alpha with pyradine derivative | 3at3 | 9.2 |
| 10 | 3ng | Human CK2 catalytic domain in complex with CX-4945 | 3nga | 10 |
| 11 | 7fc | Complex structure of human protein kinase CK2 catalytic subunit with the inhibitor 4'-carboxy-6,8-chloro-flavonol (FLC21) crystallized under low-salt conditions | 5m4f | 13 |
| 12 | 7fc | Complex structure of human protein kinase CK2 catalytic subunit with the inhibitor 4'-carboxy-6,8-chloro-flavonol (FLC21) crystallized under high-salt conditions | 5m4i | 13 |
| 13 | hck | Crystal structure of the CK2a/benzoic acid derivative complex | 5b0x | 20 |
| 14 | 7ey | Complex structure of human protein kinase CK2 catalytic subunit with a thieno[2,3-d]pyrimidin inhibitor crystallized under low-salt conditions | 5m4c | 40 |
| 15 | 7ey | Complex structure of human protein kinase CK2 catalytic subunit with a thieno[2,3-d]pyrimidin inhibitor crystallized under high-salt conditions | 5m44 | 40 |