A cell-permeable diaminoquinazoline compound that selectively blocks importin-b-mediated nuclear import of NLS- (nuclear localization signal) bearing cargos (IC50=15uM against Ca+2-induced NFAT nuclear import in HEK293 cells) in a reversible manner without affecting transportin-dependent nuclear import of M9 signal-containing cargos or CRM1-mediated nuclear export.
Storage and Stability:Lyophilized powder may be stored at -20°C. Stable for 12 months at -20°C. Reconstitute with sterile buffer or dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
