Acts probably as a receptor for selective autophagosomal degradation of ubiquitinated targets. Homooligomer and heterooligomer. Interacts with TRIM55. Interacts with SQSTM1, titin/TTN, RNF29, USP8, SQSTM1, MAP1LC3A, MAP1LC3B, MAP1LC3C, GABARAP, GABARAPL1 and GABARAPL2. Binds to ubiquitin and ubiquitinated proteins. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Ubiquitin conjugating system
Cellular Component: membrane; lysosome; late endosome; autophagic vacuole; M band; cytoplasmic vesicle; cytosol
Molecular Function: ubiquitin binding; protein binding; zinc ion binding; mitogen-activated protein kinase binding
Biological Process: regulation of stress-activated MAPK cascade; macroautophagy; negative regulation of osteoblast differentiation; regulation of bone mineralization; protein oligomerization
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.