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Decreased cleavage of CUX1 transcription factor in MCF-7 cells with increased expression of stefin B in the nucleus. MCF-7 cells were transfected with pEF/Myc/Nuc-stefin B vector (NB) (track 1) in comparison with control cells transfected with pEF/Nuk/Myc alone (NO) (track 2) and MCF-7 cells treated with 50 μm E-64d inhibitor (E-64d) (track 3).
