Intraflagellar transport (IFT) particles are essential for the biogenesis and maintenance of cilia. They assemble at the cilium base and travel up and down the cilia, turning around at the tip, but the mechanisms that regulate these processes were not clear. Hu and colleagues reveal a role for the BBSome in IFT assembly and turnaround.
- Qing Wei
- Yuxia Zhang
- Jinghua Hu