Immunofluorescence assays (IFAs) were performed as previously described [52 (link)]. The primary antibodies used include rabbit/mouse anti-HA/Myc (Cell Signaling Technology), rabbit anti-IMC6 (1:1000), rabbit anti-Centrin1 (1:1000), rat anti-IMC3 (1:1000), and rabbit/mouse anti-acetylated-Tubulin (1:5000). A Nikon Eclipse E100080i microscope was used for imaging.