PFI-4

• CAT Number: I005387
• CAS Number: 900305-37-5
• Molecular Formula: C21H24N4O3
• Molecular Weight: 380.4
• Purity: ≥95%
• Synonyms: N-(1,3-dimethyl-2-oxo-6-(pyrrolidin-1-yl)-2,3-dihydro-1H-benzo[d]imidazol-5-yl)-2-methoxybenzamide
• Target: Bromodomain
• Solubility: DMSO: ≤ 26 mg/mL
• Storage: Store at -20C
• IC50: 80 nM
• InChIKey: QCIJLRJBZDBVDB-UHFFFAOYSA-N

PFI-4 is a potent and selective and cell permeable BRPF1 bromodomain inhibitor (IC50 = 80 nM). Exhibits >100-fold selectivity for BRPF1 over a panel of other bromodomains including BRPF2 (BRD1), BRPF3 and BRD4.IC50 value: 80 nMTarget: BRPF1in vitro: Disrupts BRPF1 binding to histone H3.3. PFI-4 is a chemical probe that specifically binds to the bromodomain of BRPF1 with a Kd =13 nM as determined by ITC. It reduces recovery time in triple BRD cell construct in FRAP, inhibiting binding to tri-acetylated histone 4 (residues 1-21). It has much lower affinity for bromodomain 1 of BRD4 (Kd = >50 μM) and is selective for BRPF1 over BRPF2 and BRPF3. PFI-4 is potent in cells, with an IC50 value of 250 nM.

Reference

[1]. Demont EH, et al. 1,3-Dimethyl Benzimidazolones Are Potent, Selective Inhibitors of the BRPF1 Bromodomain. (2014) ACS Med Chem Lett. 5(11):1190-1195.