Figure 2: Immunofluorescence analysis of ALDH1A1 protein expression by ALDHbr cells from human bone marrow. Cytospin preparations incubated with rabbit serum (A) or rabbit monoclonal antibody EP1933Y to human ALDH1A1 (B) and FITC conjugated goat anti-rabbit IgG . Nuclei are counterstained with DAPI. Original magnification 400×.