OF-1

OF-1 is a chemical probe for the bromodomains of the Bromodomain and PHD Finger-containing (BRPF) family of proteins. It binds BRPF1B, BRPF2, and BRPF3 with Kd values of 0.1, 0.5, and 2.4 µM, respectively, as determined by isothermal titration calorimetry. OF-1 increases thermal stability of full length BRPF1B at 1 µM, in the cellular thermal shift assay. It also demonstrates accelerated fluorescence recovery after photobleaching (FRAP) at 5 µM in the BRPF2 FRAP assay. OF-1 shows modest general cytotoxicity. See the Structural Genomics Consortium (SGC) website for further information.Formal Name: 4-bromo-N-(2,3-dihydro-6-methoxy-1,3-dimethyl-2-oxo-1H-benzimidazol-5-yl)-2-methyl-benzenesulfonamide. CAS Number: 919973-83-4. Molecular Formula: C17H18BrN3O4S. Formula Weight: 440.3. Purity: >98%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 5 mg/ml, DMF:PBS(pH 7.2)(1:1): 0.5 mg/ml, DMSO: 1 mg/ml. SMILES: CN(C(N1C)=O)C2=C1C=C(OC)C(NS(C3=CC=C(Br)C=C3C)(=O)=O)=C2. InChi Code: InChI=1S/C17H18BrN3O4S/c1-10-7-11(18)5-6-16(10)26(23,24)19-12-8-13-14(9-15(12)25-4)21(3)17(22)20(13)2/h5-9,19H,1-4H3. InChi Key: YUNQZQREIHWDQT-UHFFFAOYSA-N.