domain:The coiled coil domains interact with the SB domain of TSG101.,domain:The PTAP motifs mediate the binding to UEV domains.,function:E3 ubiquitin-protein ligase that mediates monoubiquitination of TSG101 at multiple sites, leading to inactivate the ability of TSG101 to sort endocytic (EGF receptors) and exocytic (HIV-1 viral proteins) cargos.,pathway:Protein modification; protein ubiquitination.,similarity:Contains 1 RING-type zinc finger.,similarity:Contains 1 SAM (sterile alpha motif) domain.,similarity:Contains 5 LRR (leucine-rich) repeats.,subcellular location:Displays a punctuate distribution and localizes to a submembranal ring.,subunit:Interacts with TSG101.,
Cytoplasm . Displays a punctuate distribution and localizes to a submembranal ring (PubMed:15256501). Localizes to intracellular bacterial pathogens (PubMed:23245322). .
Highly expressed in adult spinal cord motoneurons as well as in fetal spinal cord and muscle tissue.
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