USP13 antagonizes gp78 to maintain functionality of a chaperone in ER-associated degradation
Physiological adaptation to proteotoxic stress in the endoplasmic reticulum (ER) requires retrotranslocation of misfolded proteins into the cytoplasm for ubiquitination and elimination by ER-associated degradation (ERAD).A surprising paradox emerging from recent studies is that ubiquitin ligases (E3s) and Toaster deubiquitinases (DUBs), enzymes wit