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Restoration of Rex-Rex dimerization in HeLa cells by overexpression of hCRM1 but not rCRM1. HeLa cells were transfected with pGALRex, pRexVP, pG5BLuc, and pCDMβ-gal in combination with 0.1 μg of pSRαhCRM1 or pSRαrCRM1. At 8 h posttransfection, treatment with 0.4 nM LMB commenced. At 24 h posttransfection, the cells were harvested and the Luc/β-Gal ratios of all samples were calculated.
