A, B Co-localization of NDE1 and FBW7 at the centrosome of exponentially growing (asynchronous, A) or serum-starved (24 h, G1-arrested, B) RPE1-hTERT cells. (A) Cells were double stained with mouse α-FBW7 (red) and rabbit α-NDE1 (green) (a-d) or mouse α-FBW7 (green) and rabbit γ-tubulin (red) (e–g). Nuclei were stained with DAPI (blue). Scale bars: 10 μm (a) and 5 μm (b–g). (B) Presence of FBW7 in the basal body of serum-starved RPE1-hTERT cells visualized by double staining with cilia (ARL13B, a–c)- or centrosome [(γ-tubulin, d–f), (ninein, g–i), (centrin-2, j–l)]-specific markers. Rabbit or mouse primary antibodies are shown in green or red, respectively. Scale bar: 5 μm.