ADP-ribosylation factor-binding protein GGA1 - Q9UJY5 (GGA1_HUMAN)


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Plays a role in protein sorting and trafficking between the trans-Golgi network (TGN) and endosomes. Mediates the ARF-dependent recruitment of clathrin to the TGN and binds ubiquitinated proteins and membrane cargo molecules with a cytosolic acidic cluster-dileucine (DXXLL) motif (PubMed:11301005, PubMed:15886016). Mediates export of the GPCR receptor ADRA2B to the cell surface (PubMed:27901063). Required for targeting PKD1:PKD2 complex from the trans-Golgi network to the cilium membrane (By similarity). Regulates retrograde transport of proteins such as phosphorylated form of BACE1 from endosomes to the trans-Golgi network (PubMed:15886016, PubMed:15615712). UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
Monomer (Probable). Interacts with GGA2 and GGA3 (PubMed:14638859). Binds to clathrin and activated ARFs, including ARF1, ARF5 and ARF6 (PubMed:11301005, PubMed:11950392, PubMed:12679809, PubMed:15143060, PubMed:22522702). Interacts with RABEP1 and RABGEF1 (PubMed:12505986, PubMed:15143060). Interacts with the type-I membrane proteins LRP3, M6PR/CD-MPR and IGF2R/CI-MPR (PubMed:11390366, PubMed:11387475, PubMed:12060753). Interacts (via N-terminal VHS domain) with SORL1/sorLA and SORT1 (via C-terminal cytosolic domain) (PubMed:11821067, PubMed:17855360, PubMed:20015111). Interacts with EPN4 (PubMed:12538641). Binds CCDC91, P200 and SYNRG (PubMed:12858163, PubMed:12808037, PubMed:10814529). Interacts with NECAP1, NECAP2 and AFTPH/aftiphilin (PubMed:14665628). Interacts with TSG101 and UBC (PubMed:14660606, PubMed:15143060). Interacts with RNF11 (PubMed:20676133). Interacts (via VHS domain) with BACE1 (via DXXLL motif); the interaction highly increases when BACE1 is phosphorylated at 'Ser-498' (PubMed:14567678, PubMed:15886016). Interacts with CNST (By similarity). Interacts with ADRA2B (PubMed:27901063). Interacts with ARL3; the interaction recruits, in collaboration with RABEP1, PKD1:PKD2 complex to trans-Golgi network and is required for ciliary targeting (By similarity). UniProt
The GAE domain binds accessory proteins regulating GGAs function. UniProt
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