Cellular localization of RARα-containing proteins. Deconvolution fluorescence microscopy was used to analyze HeLa cells transiently transfected with the indicated YFP-tagged proteins, R1A-RARα, R1A-RARα(ΔRIIa), wild-type R1A, or wild-type RARα. Nuclei were visualized by counterstaining with DAPI (blue), and representative cells are shown.