The small GTPase ARL13B is required for the ciliary localization of INPP5E. ARL13B binds directly to INPP5E and is thought to displace PDE6D from the complex (Humbert et al, 2012).
Seo, S, Searby, CC, Li, Y, Pope, RM, Sheffield, VC, Humbert, MC, Weihbrecht, K
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