Arrestin domain-containing protein 1 - Q99KN1 (ARRD1_MOUSE)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Functions as an adapter recruiting ubiquitin-protein ligases to their specific substrates (PubMed:23886940, PubMed:27462458). Through an ubiquitination-dependent mechanism plays for instance a role in the incorporation of SLC11A2 into extracellular vesicles (PubMed:27462458). More generally, plays a role in the extracellular transport of proteins between cells through the release in the extracellular space of microvesicles (By similarity). By participating to the ITCH-mediated ubiquitination and subsequent degradation of NOTCH1, negatively regulates the NOTCH signaling pathway (PubMed:23886940). UniProt
Pathway Maps
      ESCHER  BiGG
Subunit Structure
Interacts (via PPxY motifs) with ITCH (via WW domains); the interaction is direct and participates in the recruitment of the ubiquitin-protein ligase ITCH to the NOTCH1 receptor. Interacts with ARRB1 and ARRB2; the interaction is direct. Interacts with TSG101; may recruit TSG101 to the plasma membrane. Interacts (via PPxY motifs) with WWP2 (via WW domains); ubiquitinates ARRDC1. Interacts with SLC11A2; controls the incorporation of SLC11A2 into extracellular vesicles through an ubiquitination-dependent mechanism. Interacts with WWP1 (via WW domains). Interacts with NEDD4 (via WW domains). Interacts with ALIX. UniProt
The PPxY motifs mediate interaction with WW domain-containing ubiquitin-protein ligases. UniProt
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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