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Ever-expanding NGLY1 biology

The cytosolic peptide:N-glycanase (PNGase; NGLY1 in humans) is a deglycosylating enzyme that is widely conserved in eukaryotes. This enzyme is involved in the degradation of misfolded N-glycoproteins that are destined for proteasomal degradation in the cytosol, a process that is called endoplasmic reticulum-associated degradation. […]In this special issue, recent research progress on the functional characterization of NGLY1 and its orthologues in worm/fly/rodents, assay methods/biomarkers useful for the development of therapeutics and the comprehensive transcriptome/proteome of NGLY1-KO cells as well as patient-derived cells are discussed.