Evidence map›Paper›PMID 36864173›Full record

ArticleNature structural & molecular biology2023

The structure of pathogenic huntingtin exon 1 defines the bases of its aggregation propensity.

Carlos A Elena-Real, Amin Sagar, Annika Urbanek, Matija Popovic, Anna Morató, Alejandro Estaña, Aurélie Fournet, Christine Doucet, Xamuel L Lund, Zhen-Dan Shi and 11 more

Abstract read
PubMed Publisher
In one paragraph

Article in Nature structural & molecular biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
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

21 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Fast Ultra-SelectiveAngewandte Chemie (International ed. in English) · 2026
    Article
  5. GFP-free live neuron quantitative imaging reveals compartmentalization and growth dynamics of polyQ aggregates.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

21 authors.

Carlos A Elena-RealCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Amin SagarCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Annika UrbanekCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Matija PopovicCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Anna MoratóCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Alejandro EstañaCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Aurélie FournetCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Christine DoucetCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Xamuel L LundCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Zhen-Dan ShiThe Chemistry and Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD, USA.
Luca CostaCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.ORCID 0000-0002-4527-0034
Aurélien ThureauSWING Beamline, Synchrotron SOLEIL, Gif sur Yvette, France.ORCID 0000-0001-5666-260X
Frédéric AllemandCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.ORCID 0000-0003-0396-6145
Rolf E SwensonThe Chemistry and Synthesis Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Rockville, MD, USA.
Pierre-Emmanuel MilhietCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.ORCID 0000-0002-0410-5956
Ramon CrehuetInstitute for Advanced Chemistry of Catalonia (IQAC), CSIC, Barcelona, Spain.ORCID 0000-0002-6687-382X
Alessandro BarducciCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.ORCID 0000-0002-1911-8039
Juan CortésLAAS-CNRS, University of Toulouse, CNRS, Toulouse, France.ORCID 0000-0002-4660-0306
Davy SinnaeveUniv. Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1167 - RID-AGE - Risk Factors and Molecular Determinants of Aging-Related Diseases, Lille, France.ORCID 0000-0003-2556-5895
Nathalie SibilleCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France.
Pau BernadóCentre for Structural Biology, University of Montpellier, INSERM, CNRS, Montpellier, France. pau.bernado@cbs.cnrs.fr.ORCID 0000-0001-7395-5922

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Huntington's disease is a neurodegenerative disorder caused by a CAG expansion in the first exon of the HTT gene, resulting in an extended polyglutamine (poly-Q) tract in huntingtin (httex1). The structural changes occurring to the poly-Q when increasing its length remain poorly understood due to its intrinsic flexibility and the strong compositional bias. The systematic application of site-specific isotopic labeling has enabled residue-specific NMR investigations of the poly-Q tract of pathogenic httex1 variants with 46 and 66 consecutive glutamines. Integrative data analysis reveals that the poly-Q tract adopts long α-helical conformations propagated and stabilized by glutamine side chain to backbone hydrogen bonds. We show that α-helical stability is a stronger signature in defining aggregation kinetics and the structure of the resulting fibrils than the number of glutamines. Our observations provide a structural perspective of the pathogenicity of expanded httex1 and pave the way to a deeper understanding of poly-Q-related diseases.

Indexed as

ExonsHuntingtin ProteinMagnetic Resonance SpectroscopyProtein Conformation, alpha-HelicalHTT protein, humanHuntingtin Protein

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.