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Updated: Jan 29, 2026

Detection of Protein Ubiquitination
Published on: August 19, 2009
Ubiquitin-a beacon for all during quality control on the ribosome
1Department of Biology, Washington University in St. Louis, St. Louis, MO, USA.
Abstract:
Ribosome stalling triggers no-go decay (NGD) and ribosome-associated quality control (RQC) pathways to rapidly degrade the aberrant mRNA and the incomplete nascent peptide, respectively. Two recent studies in yeast and mammalian systems reveal the importance of stalling-induced ribosomal protein ubiquitination by Hel2/ZNF598 for both NGD and RQC The studies also structurally explain how collided ribosomes generate a unique interface not present in monosomes, which can be recognized by Hel2/ZNF598 ubiquitin ligases.
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