Many age-related disorders, such as neurodegenerative diseases, are associated with protein misfolding. Here, the authors identify LONRF2 as a protein quality control ubiquitin ligase that is expressed in neurons and ubiquitylates misfolded TDP-43 and hnRNP M1 and show that loss of Lonrf2 in mice results in late-onset motor neuron degeneration, whereas its ectopic expression partially rescued the phenotypes observed in motor neurons derived from patients with amyotrophic lateral sclerosis.
- Dan Li
- Yoshikazu Johmura
- Makoto Nakanishi