Table S1.
Drugs screened for the effect on BRD4 hyperphosphorylation
| Name | Target | Effect on BRD4 hyperphosphorylation |
| Ibrutinib | BTK | No effect |
| Idelalisib | PI3K (p110δ) | No effect |
| Trametinib | MEK1/2 | No effect |
| TBB | CKII | No effect |
| LDC000067 | CDK9 | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| PHA767491 | CDK9/CDC7 | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| Flavopiridol | CDKs | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| DRB | CDK9 and many other kinases | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| Apigenin | CDK9 and many other kinases | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| Wortmannin | PI3K/ATM | No effect |
| Danusertib | Aurora A/B/C | No effect |
| Sotrastaurin | pan-PKC | No effect |
| MK-2206 | Akt1/2/3 | No effect |
| KU-55933 | ATM | No effect |
| D4476 | CKI | No effect |
| CHIR99021 | GSK-3α/β | No effect |
| SRPIN340 | SRPK1 | No effect |
| NU7441 | DNA-PK | No effect |
| Palbociclib | CDK4/6 | No effect |
| 3-Deazaneplanocin A (DZNep) | EZH2 | No effect |
| BIX01294 | G9a | No effect |
| GSK343 | EZH2 | No effect |
| CPI-169 | EZH2 | No effect |
| C646 | p300 | Inhibits BRD4 hyperphosphorylation in HCC2429 |
| (+)-JQ1 | BRD4 and other BET proteins | Reduces BRD4 hyperphosphorylation in HCC2429 |
| HMBA | Releases P-TEFb, induces HEXIM1, also targets p300 and BRD4 | Reduces BRD4 hyperphosphorylation in HCC2429 |