期刊
FEBS JOURNAL
卷 289, 期 23, 页码 7359-7367出版社
WILEY
DOI: 10.1111/febs.16232
关键词
Bardet-Biedl syndrome; BBSome; Cilia; IFT22; IFT27; Rabl2; Rab-like; small GTPases
资金
- National Natural Science Foundation of China [31471323]
Primary cilia are important sensory organelles in cells, with intraflagellar transport essential for their assembly, maintenance, and function. Recent studies have highlighted the critical regulatory roles of three ciliary Rab-like small GTPases in ciliary BBSome transport.
Primary cilia, microtubule-based hair-like structures protruding from most cells, contain membranes enriched in signaling molecules and function as sensory and regulatory organelles critical for development and tissue homeostasis. Intraflagellar transport (IFT), cilia-specific bidirectional transport, is required for the assembly, maintenance, and function of cilia. BBSome, the coat complex, acts as the adaptor between the IFT complex and membrane proteins and is therefore essential for establishing the specific compartmentalization of signaling molecules in the cilia. Recent findings have revealed that three ciliary Rab-like small GTPases, IFT27, IFT22, and Rabl2, play critical regulatory roles in ciliary BBSome transport. In this review, we provide an overview of these three Rab-like small GTPases and their relationship with BBSome.
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