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. 2017 Mar 27;292(20):8331–8341. doi: 10.1074/jbc.M116.772327

Figure 2.

Figure 2.

DDX41 controls the expression of p21 independent of caspase-2. A, Western blot analyses for the presence of the indicated proteins in immunoprecipitates of the BrU-labeled 3′UTR-containing p21 mRNA. Before immunoprecipitation (IP), the p21 mRNA was incubated for 2 h with cytoplasmic extracts of HCT116 wild-type cells that were transfected with control or caspase-2 siRNA. Cytoplasmic extracts that were not subjected to RNA immunoprecipitation served as controls (Input). B and C, Western blot analyses for the status of the indicated proteins in extracts of HCT116 wild-type cells transfected with either control or caspase-2 siRNA. Samples were probed at the indicated times after γIR. The blots shown are representative results of five (A) and three (B and C) independent experiments.