4LVR:
reference: Molecular basis of tubulin transport within the cilium by IFT74 and IFT81., Bhogaraju S, Cajanek L, Fort C, Blisnick T, Weber K, Taschner M, Mizuno N, Lamla S, Bastin P, Nigg EA, Lorentzen E, Science. 2013 Aug 30;341(6149):1009-12. doi: 10.1126/science.1240985. PMID: 23990561

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