For research use only. Not for therapeutic Use.
RB-3, a polycomb repressive complex 1 (PRC1) inhibitor, binds to RING1B-BMI1f, with a Kd of 2.8 μM[1].
RB-3 decreases the global level of H2A ubiquitination and induces differentiation in leukemia cell lines and primary acute myeloid leukemia (AML) samples[1].
RB-3 inhibits H2A ubiquitination with an IC50 of 1.6 μM[1].
RB-3 inhibits PRC1 and disrupts the interaction with nucleosomes[1].
RB-3 reduces colony formation in a mixed lineage leukemia (MLL)-eleven nineteen leukemia (ENL) model[1].
| Catalog Number | I044391 |
| CAS Number | 2396639-11-3 |
| Synonyms | 3-(5-chloro-1H-indol-4-yl)-5-(1H-indol-4-yl)-4-propan-2-yl-1H-pyrrole-2-carboxylic acid |
| Molecular Formula | C24H20ClN3O2 |
| Purity | ≥95% |
| InChI | InChI=1S/C24H20ClN3O2/c1-12(2)19-21(20-15-9-11-27-18(15)7-6-16(20)25)23(24(29)30)28-22(19)14-4-3-5-17-13(14)8-10-26-17/h3-12,26-28H,1-2H3,(H,29,30) |
| InChIKey | IUEFQUANJWCUNT-UHFFFAOYSA-N |
| SMILES | CC(C)C1=C(NC(=C1C2=C(C=CC3=C2C=CN3)Cl)C(=O)O)C4=C5C=CNC5=CC=C4 |
| Reference | [1]. Shirish Shukla, et al. Small-molecule inhibitors targeting Polycomb repressive complex 1 RING domain. Nat Chem Biol. 2021 Jul;17(7):784-793. |
