174/2 and PAL-E recognize the same molecule. Immunofluorescence stainings of lymph node (A-C), kidney (D-F), and PV-1/FELS cDNA-transfected CHO cells (G-K). The tissues and cells were stained with 174/2 (green) and PAL-E (red), and merged images are shown in panels C, F, and I. The mock-transfected CHO cells stained with 174/2 and anti–PAL-E mAbs are shown in panel J. Orthogonal sections of a Z stack were made from PV-1–transfected CHO cells stained with 174/2 antibody (K). The representative negative controls are shown in the insets.