Subcellular localizations of BCOR-RARA and BCL6. (A) Input proteins. Immunoblotting was performed with anti-FLAG and BCL6 antibodies. (B) Coimmunofluorescence analysis was performed in 293T cells transfected with BCL6 and one of mock, Ft-BCOR, Ft-PML-RARA, or Ft-BCOR-RARA plasmids using DAPI for nuclear staining. Multiple confocal microscopy images of the given fields are merged in the lower lane. The patterns of BCOR-RARA localization were analyzed for 100 cells counted.