SW-1116-LOC113230 cells transiently transfected with siRNAs to LRPPRC or TRAF2 or scrambled control (SiRNA-NC) were treated with MG132 (5 µM) for 12 hrs. Cell lysates were immunoprecipitated with α-Flag antibody. The precipitate proteins and input proteins were analyzed by immunoblotting. NC: Negative control. 