Evidence map›Paper›PMID 23983124›Full record

ArticleThe Journal of biological chemistry2013

A mental retardation-linked nonsense mutation in cereblon is rescued by proteasome inhibition.

Guoqiang Xu, Xiaogang Jiang, Samie R Jaffrey

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. The CBEMBO molecular medicine · 2024
    Article
  7. Review
  8. Review
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  12. Article
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  15. Article
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  17. Article
  18. Article
  19. Article
  20. A missense mutation in theJournal of medical genetics · 2017
    Article
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

3 authors at 2 institutions in 2 countries.

Guoqiang XuFrom the Department of Pharmacology, College of Pharmaceutical Sciences, Jiangsu Key Laboratory of Translational Research for Neuro-Psycho-Diseases, Soochow University, Suzhou, Jiangsu 215123, China and.
Xiaogang Jiang
Samie R Jaffrey
Soochow University · CNCornell University · US

Funding

CANCER PHARMACOLOGYT32CA062948 · NCI · WEILL MEDICAL COLL OF CORNELL UNIV · PI LORRAINE J GUDAS · 1994 to 2026
$12.1M
QqTOF Hybrid Mass SpectrometerS10RR022615 · NCRR · WEILL MEDICAL COLL OF CORNELL UNIV · PI GROSS, STEVEN S · 2007 to 2007
$470k
MASS SPECTROMETRY SYST: RETINOID &CANCERS10RR019355 · NCRR · WEILL MEDICAL COLLEGE OF CORNELL UNIV · PI GROSS, STEVEN S · 2004 to 2004
$452k
Comprehensive profiling of ubiquitination in neuronsR21MH086128 · NIMH · WEILL MEDICAL COLL OF CORNELL UNIV · PI JAFFREY, SAMIE R · 2010 to 2011
$420k
NCI NIH HHS T32 CA062948NCI NIH HHS T32CA062948NCRR NIH HHS RR19355NCRR NIH HHS RR22615NCRR NIH HHS S10 RR019355NCRR NIH HHS S10 RR022615NIMH NIH HHS MH086128NIMH NIH HHS R21 MH086128
6 · The paper itself

Abstract

A nonsense mutation in cereblon (CRBN) causes autosomal recessive nonsyndromic mental retardation. Cereblon is a substrate receptor for the Cullin-RING E3 ligase complex and couples the ubiquitin ligase to specific ubiquitination targets. The CRBN nonsense mutation (R419X) results in a protein lacking 24 amino acids at its C terminus. Although this mutation has been linked to mild mental retardation, the mechanism by which the mutation affects CRBN function is unknown. Here, we used biochemical and mass spectrometric approaches to explore the function of this mutant. We show that the protein retains its ability to assemble into a Cullin-RING E3 ligase complex and catalyzes the ubiquitination of CRBN-target proteins. However, we find that this mutant exhibits markedly increased levels of autoubiquitination and is more readily degraded by the proteasome than the wild type protein. We also show that the level of the mutant protein can be restored by a treatment of cells with a clinically utilized proteasome inhibitor, suggesting that this agent may be useful for the treatment of mental retardation associated with the CRBN R419X mutation. These data demonstrate that enhanced autoubiquitination and degradation account for the defect in CRBN activity that leads to mental retardation.

Indexed as

Codon, NonsenseAdaptor Proteins, Signal TransducingBoronic AcidsBortezomibHEK293 CellsHumansImmunoblottingIntellectual DisabilityLysineMicroscopy, FluorescenceMutant ProteinsNuclear ProteinsPeptide HydrolasesProteasome Endopeptidase ComplexProteasome InhibitorsProteolysisAdaptor Proteins, Signal TransducingBoronic AcidsBortezomibCodon, NonsenseCRBN protein, humanDTL protein, humanLysineMutant ProteinsNuclear ProteinsPeptide HydrolasesProteasome Endopeptidase ComplexProteasome InhibitorsPyrazinesUbiquitin-Protein LigasesCereblonE3 Ubiquitin LigaseGenetic DiseasesMental RetardationMutantNonsense MutationProteasome InhibitionProtein DegradationUbiquitinUbiquitination

Identifiers

PMID23983124
PMCPMC3795255
OpenAlexW2076088245

What OpenQuestion holds

Textmetadata
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.