ArticleLife science alliance2023
FAT10 and NUB1L cooperate to activate the 26S proteasome.
Article in Life science alliance, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Intermolecular β-sheet Formation Guides the Interaction between Ubiquitin-like Modifier FAT10 and Adapter Protein NUB1L.Journal of the American Chemical Society · 2026Article
- TGF-β1/SMAD signaling downregulates KLF4 expression via direct transcriptional suppression and FAT10-mediated proteasomal degradation in hepatocellular carcinoma.Cell & bioscience · 2026Article
- The emerging role of ubiquitin-proteasome system dysfunction in the pathogenesis of perioperative neurocognitive disorders: a narrative review.Frontiers in behavioral neuroscience · 2026Review
- NUB1 traps unfolded FAT10 for ubiquitin-independent degradation by the 26S proteasome.Nature structural & molecular biology · 2025Article
- Mechanisms and regulation of substrate degradation by the 26S proteasome.Nature reviews. Molecular cell biology · 2025Review
- Phosphorylated FAT10 Is More Efficiently Conjugated to Substrates, Does Not Bind to NUB1L, and Does Not Alter Degradation by the Proteasome.Biomedicines · 2024Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The interaction of the 19S regulatory particle of the 26S proteasome with ubiquitylated proteins leads to gate opening of the 20S core particle and increases its proteolytic activity by binding of the ubiquitin chain to the inhibitory deubiquitylation enzyme USP14 on the 19S regulatory subunit RPN1. Covalent modification of proteins with the cytokine inducible ubiquitin-like modifier FAT10 is an alternative signal for proteasomal degradation. Here, we report that FAT10 and its interaction partner NUB1L facilitate the gate opening of the 20S proteasome in an ubiquitin- and USP14-independent manner. We also show that FAT10 is capable to activate all peptidolytic activities of the 26S proteasome, however only together with NUB1L, by binding to the UBA domains of NUB1L and thereby interfering with NUB1L dimerization. The binding of FAT10 to NUB1L leads to an increased affinity of NUB1L for the subunit RPN1. In conclusion, the herein described cooperation of FAT10 and NUB1L is a substrate-induced mechanism to activate the 26S proteasome.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.