The BBSome controls IFT assembly and turnaround in cilia.
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The BBSome assembles IFT complexes at the ciliary base
"the BBSome (refs 3, 4), a group of conserved proteins affected in human Bardet-Biedl syndrome(5) (BBS), assembles IFT complexes at the ciliary base"
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The BBSome binds to IFT particles as cargo, not as a structural component
"After IFT particles are assembled at the ciliary base, the BBSome binds to the IFT particle like a cargo but not a structural component"
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BBSome is required for IFT particle reassembly and turnaround at ciliary tip
"the BBSome is required for assembling IFT particles at both ciliary base and tip"
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BBS-2 shows ciliary localization and IFT movement
"the others (BBS-2, -5, -7, -8, -9) only showed very dim ciliary staining when compared to wild-type animals"
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BiFC assays confirm BBS proteins form a complex in C. elegans
"In wild-type animals, fluorescence complementation can be observed in BBS-1–BBS-7 and BBS-1–BBS-9 pair, indicative of the coexistence of these three BBS proteins in the same complex"
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Loss of BBSome-IFT coupling leads to IFT-B accumulation at ciliary tips
"The absence of the BBSome at the cilia tip leads to the defective recycling of IFT complex"