Western blot analysis of extracts from 293T cells, mock transfected (-) or transfected with a construct expressing Myc/DDK-tagged full-length human EXPAND1/MUM1 (hEXPAND1/MUM1-Myc/DDK; +) protein, using EXPAND1/MUM1 (D1Z6Y) Rabbit mAb (upper) or Myc-Tag (71D10) Rabbit mAb #2278 (lower).