Ubiquilin 2: Shuttling Clients Out of Phase?

Ubiquilin 2 (UBQLN2) is an amyotrophic lateral sclerosis-linked molecular chaperone with a prion-like domain that directly engages ubiquitin to triage clients for proteasomal degradation. Dao et al. (2018) now establish that UBQLN2 forms ubiquitin-labile liquids, which may enable UBQLN2 to specifically extract ubiquitylated clients from stress granules for degradation.