Table S2.
List of antibodies
| Antibody | Type | Manufacturer | Catalog no. | Application(s) |
| Pgr | Rabbit IgG | Dako | A0098 | IHC |
| Esr1 | Mouse IgG | Vector Laboratories | VP-E613 | IHC |
| p-Esr1 (S118) | Rabbit IgG | Abcam | ab31477 | IHC |
| Ki67 | Mouse IgG | BD Biosciences | 550609 | IHC |
| Muc1 | Rabbit IgG | Abcam | ab15481 | IHC |
| COUP-TFII | Mouse IgG | Perseus Proteomics | PD-H7147-00 | IHC |
| PU.1 | Rabbit IgG | Santa Cruz Biotechnology | sc-352 | IHC, ChIP, immunoprecipitation |
| Dnmt3b | Rabbit IgG | Abcam | ab2851 | ChIP, immunoprecipitation |
| Lif | Goat IgG | Santa Cruz Biotechnology | Sc-1336 | WB |
| β-Actin | Mouse IgG | Sigma-Aldrich | A-5441 | WB |
IHC, immunohistochemistry; WB, Western blot.