The new insights into the activation mechanism of Parkin E3 ligase could be useful for designing small-molecule activators against Parkinson’s disease.
Genetic and biochemical approaches reveal that mammalian cells possess a novel DDI2 and transcription-independent pathway for the rapid recovery of proteasome activity after clinically relevant pulse treatment with proteasome inhibitors.
A deubiquitinase antagonizes the activity of an associated E3 ligase to prevent uncontrolled ubiquitination of a degradation machinery protein and thus maintain its functionality in protein quality control at the endoplasmic reticulum.
Jasmin van den Heuvel, Caroline Ashiono ... Ulrike Kutay
Endoproteolytic cleavage of the ribosomal precursor protein FUBI-eS30 is required for efficient maturation of small ribosomal subunits in the cytoplasm of human cells and involves the nucleolar deubiquitinase USP36.
A novel ALS-associated variant in UBQLN4 impairs proteasome function and beta-catenin degradation to drive aberrant axon morphogenesis in motor neurons.