Fig. 2. RIP1 increases β-catenin expression and stability.
A Expression of RIP1 and β-catenin in HCT116 and DLD-1 cells. Left panels: Expression of RIP1 and β-catenin. Right panels: Graph of band densities of RIP1 and β-catenin. B IP assay was performed with HCT116 and DLD-1 cells treated with or without WNT3A. C In vitro binding assay of HIS-tagged RIP1 with GST-fused β-catenin. The detailed protocol is described in the Materials and Methods. D IP analyses were performed with HCT116 and DLD-1 cells transiently transfected with Flag-Mock (pcDNA3.1) or Flag-RIP1 plasmids.