| Assay Method Information | |
| | Inhibition of Nuclear Export |
| Description: | The ability of exemplary compounds of the invention to inhibit CRM1-mediated nuclear export was assessed in a RevGFP assay. Rev is a protein from human immunodeficiency virus type 1 (HIV-1) and contains a nuclear export signal (NES) in its C-terminal domain and a nuclear localization signal (NLS) in its N-terminal domain. Nuclear export of Rev protein is dependent on the classical NES/CRM1 pathway (Neville et al. 1997). Nuclear accumulation of Rev can be observed in cells treated with specific inhibitors of CRM1, such as LMB (Kau et al. 2003).In this assay, U2OS-RevGFP cells were seeded onto clear-bottomed, black, 384-well plates the day before the experiment. Compounds were serially diluted 1:2 in DMEM, starting from 40 μM in a separate, 384-well plate, and then transferred onto the cells. The cells were incubated with compound for about 1 hr before fixation with 3.7% formaldehyde and nuclei staining with Hoechst 33258. |
| Affinity data for this assay | |
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