Fig. 6. ImmunoFISH of HeLa cells fixed with 2% PFA for 30 minutes. Antibodies against P68 (green) and alphoid DNA (A) and HS3 (B) probes (in red) were used to probe HeLa cells. (C) Double immunofluorescence staining of HeLa cells with SC35 antibody (red) and the antibody against P68 (green). Bar, 10 µm.