A cell-permeable halogenated benzimidazole compound that acts as a selective and ATP competitive inhibitor of casein kinase II (CK2, Ki = 70nM for the active hetero-tetrameric form). However, its effect on free CK2a and CK2a' subunits is significantly reduced (Ki = 510 and 400nM, respectively). Reported to reduce viability and proliferation in HeLa, Jurkat, and HL-60 cells (at ˜25uM). Also shown to disrupt the promoter activity of CYP24A1 and down-regulates its endogenous and 1, 25-Vitamin D3 (1,25-D3)-induced expression in PC3 cells. Synergistically enhances the anti-tumor effect of 1, 25-D3 in a PC3 xenograft murine model.
Storage and Stability:May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
