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Knockdown of ARNT in 786-Owt cells and effects on radioresistance. a 786-Owt cells were transfected with non-target control (ctrl.) siRNA or siRNA against ARNT (siARNT) and subjected to Western blot analysis. Actin levels were determined for loading control. Protein masses are indicated on the right in kDa. b Clonogenic survival assays of irradiated 786-Owt cells transfected as described in (a). n = 6, mean +/− SEM, unpaired t-test
