Anti-Ubiquilin 2 UBQLN2 Monoclonal Antibody

Ubiquilin-2; Chap1; DSK2 homolog; Protein linking IAP with cytoskeleton 2; PLIC-2; hPLIC-2; Ubiquitin-like product Chap1/Dsk2; UBQLN2; N4BP4, PLIC2; HRIHFB2157

Plays an important role in the regulation of different protein degradation mechanisms and pathways including ubiquitin- proteasome system (UPS), autophagy and the endoplasmic reticulum- associated protein degradation (ERAD) pathway. Mediates the proteasomal targeting of misfolded or accumulated proteins for degradation by binding (via UBA domain) to their polyubiquitin chains and by interacting (via ubiquitin-like domain) with the subunits of the proteasome (PubMed:10983987) . Plays a role in the ERAD pathway via its interaction with ER-localized proteins FAF2/UBXD8 and HERPUD1 and may form a link between the polyubiquitinated ERAD substrates and the proteasome (PubMed:24215460, PubMed:18307982) . Involved in the regulation of macroautophagy and autophagosome formation; required for maturation of autophagy-related protein LC3 from the cytosolic form LC3-I to the membrane-bound form LC3-II and may assist in the maturation of autophagosomes to autolysosomes by mediating autophagosome-lysosome fusion (PubMed:19148225, PubMed:20529957) . Negatively regulates the endocytosis of GPCR receptors: AVPR2 and ADRB2, by specifically reducing the rate at which receptor- arrestin complexes concentrate in clathrin-coated pits (CCPs) (PubMed:18199683) . .

Cytoplasm . Nucleus . Membrane . Cytoplasmic vesicle, autophagosome . Colocalizes with a subset of proteasomes, namely those that are cytoskeleton associated or free in the cytosol. Associated with fibers in mitotic cells. .