Evidence map›Paper›PMID 34761751›Full record

ArticleeLife2021

Branched ubiquitin chain binding and deubiquitination by UCH37 facilitate proteasome clearance of stress-induced inclusions.

Aixin Song, Zachary Hazlett, Dulith Abeykoon, Jeremy Dortch, Andrew Dillon, Justin Curtiss, Sarah Bollinger Martinez, Christopher P Hill, Clinton Yu, Lan Huang and 3 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 38 citations in OpenAlex.

  1. Review
  2. Substrate biasing in UCHL5 proteoforms.bioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Article
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  11. Review
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  13. Review
  14. TheActa biochimica et biophysica Sinica · 2023
    Article
  15. Article
  16. From seeds to trees: how E2 enzymes grow ubiquitin chains.Biochemical Society transactions · 2023
    Review
  17. Assembly and disassembly of branched ubiquitin chains.Frontiers in molecular biosciences · 2023
    Review
  18. Real-Time Deubiquitination Assays Using a Free Ubiquitin Sensor.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 1 country.

Aixin SongDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.ORCID 0000-0002-4377-7528
Zachary HazlettDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.
Dulith AbeykoonDepartment of Chemistry and Biochemistry, University of Maryland, College Park, United States.
Jeremy DortchDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.
Andrew DillonDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.
Justin CurtissDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.ORCID 0000-0002-3996-2659
Sarah Bollinger MartinezDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.
Christopher P HillDepartment of Biochemistry, University of Utah School of Medicine, Salt Lake City, United States.ORCID 0000-0001-6796-7740
Clinton YuDepartment of Physiology and Biophysics, University of California, Irvine, Irvine, United States.
Lan HuangDepartment of Physiology and Biophysics, University of California, Irvine, Irvine, United States.
David FushmanDepartment of Chemistry and Biochemistry, University of Maryland, College Park, United States.
Robert E CohenDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.ORCID 0000-0001-7397-4138
Tingting YaoDepartment of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, United States.ORCID 0000-0003-4101-9691
Colorado State University · USUniversity of California, Irvine · USUniversity of Maryland, College Park · USUniversity of Utah · US

Funding

Solution structure and dynamics of polyubiquitin chainsR01GM065334 · NIGMS · UNIV OF MARYLAND, COLLEGE PARK · PI DAVID FUSHMAN · 2002 to 2026
$6.2M
Proteomics of the Proteasome Interacting NetworksR01GM074830 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI HUANG, LAN · 2005 to 2022
$6.1M
Regulation of a Deubiquitinating Enzyme in Proteolysis and Chromatin RemodelingR01GM098401 · NIGMS · COLORADO STATE UNIVERSITY · PI YAO, TINGTING · 2011 to 2021
$2.9M
Quantitation of Ubiquitin Dynamics and HomeostasisR01GM115997 · NIGMS · COLORADO STATE UNIVERSITY · PI COHEN, ROBERT · 2015 to 2018
$2.0M
Structural dynamics and function of the COP9 signalosomeR01GM130144 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI HUANG, LAN · 2018 to 2021
$1.2M
Detection and quantitation of branched ubiquitin in polyubiquitinated proteinsR21GM135818 · NIGMS · COLORADO STATE UNIVERSITY · PI COHEN, ROBERT · 2020 to 2021
$414k
NIGMS NIH HHS R01 GM065334NIGMS NIH HHS R01 GM074830NIGMS NIH HHS R01 GM098401NIGMS NIH HHS R01 GM115997NIGMS NIH HHS R01 GM130144NIGMS NIH HHS R21 GM135818
6 · The paper itself

Abstract

UCH37, also known as UCHL5, is a highly conserved deubiquitinating enzyme (DUB) that associates with the 26S proteasome. Recently, it was reported that UCH37 activity is stimulated by branched ubiquitin (Ub) chain architectures. To understand how UCH37 achieves its unique debranching specificity, we performed biochemical and Nuclear Magnetic Resonance (NMR) structural analyses and found that UCH37 is activated by contacts with the hydrophobic patches of both distal Ubs that emanate from a branched Ub. In addition, RPN13, which recruits UCH37 to the proteasome, further enhances branched-chain specificity by restricting linear Ub chains from having access to the UCH37 active site. In cultured human cells under conditions of proteolytic stress, we show that substrate clearance by the proteasome is promoted by both binding and deubiquitination of branched polyubiquitin by UCH37. Proteasomes containing UCH37(C88A), which is catalytically inactive, aberrantly retain polyubiquitinated species as well as the RAD23B substrate shuttle factor, suggesting a defect in recycling of the proteasome for the next round of substrate processing. These findings provide a foundation to understand how proteasome degradation of substrates modified by a unique Ub chain architecture is aided by a DUB.

Indexed as

Catalytic DomainGene DeletionHCT116 CellsHEK293 CellsHumansInclusion BodiesIntracellular Signaling Peptides and ProteinsProteasome Endopeptidase ComplexProtein BindingProteolysisUbiquitinATP dependent 26S proteaseIntracellular Signaling Peptides and ProteinsProteasome Endopeptidase ComplexUbiquitinbiochemistrybranched ubiquitin chaincell biologychemical biologyDUBhumanproteasomeubiquitinUCH37UCHL5

Identifiers

PMID34761751
PMCPMC8635973
OpenAlexW3212763564

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.