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Part of intraflagellar transport (IFT) particles involved in ciliary process assembly. May play a role in the trafficking of ciliary membrane proteins from the Golgi complex to the cilium. Regulates the platelet-derived growth factor receptor-alpha (PDGFRA) signaling pathway. Required for protein stability of E3 ubiquitin ligases CBL and CBLB that mediate ubiquitination and internalization of PDGFRA for proper feedback inhibition of PDGFRA signaling. Essential for male fertility. Plays an important role in spermatogenesis, particularly spermiogenesis, when germ cells form flagella. May play a role in the transport of flagellar proteins ODF2 and SPAG16 to build sperm flagella and in the removal of redundant sperm cytoplasm. Also involved in autophagy since it is required for trafficking of ATG16L and the expansion of the autophagic compartment.
Gene References into Functions
intraflagellar transport protein 20 (IFT20) interacts with E3 ubiquitin ligases c-Cbl and Cbl-b and is required for Cbl-mediated ubiquitination and internalization of PDGFRalpha for feedback inhibition of receptor signaling. PMID: 29237719
the traffic-related role of an IFT20 complex that includes components of the intracellular trafficking machinery in immune synapse assembly, is reported. PMID: 28154159
IFT20 is required for the delivery of the intracellular pool of LAT to the immune synapse in naive primary T lymphocytes. PMID: 26715756
Data report the molecular cloning and characterization of a novel human cDNA encoding a putative protein of 158 amino acid residues which shares high homology to Mus musculus intraflagellar transport protein mIFT20. PMID: 14672413
This work suggests that IFT20 functions in the delivery of ciliary membrane proteins from the Golgi complex to the cilium. PMID: 16775004