Evidence map›Paper›PMID 34239038›Full record

ArticleCommunications biology2021

Cryo-electron tomography provides topological insights into mutant huntingtin exon 1 and polyQ aggregates.

Jesús G Galaz-Montoya, Sarah H Shahmoradian, Koning Shen, Judith Frydman, Wah Chiu

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.6field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. 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
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  12. Missing Wedge Completion via Unsupervised Learning with Coordinate Networks.International journal of molecular sciences · 2024
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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

5 authors at 5 institutions in 2 countries.

Jesús G Galaz-MontoyaDepartment of Bioengineering and James H. Clark Center, Stanford University, Stanford, CA, USA. jgalaz@gmail.com.ORCID 0000-0002-0113-9325
Sarah H Shahmoradian *Department of Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute, Villigen, Switzerland.
Koning Shen *Department of Biology, Stanford University, Stanford, CA, USA.
Judith FrydmanDepartment of Biology, Stanford University, Stanford, CA, USA.ORCID 0000-0003-2302-6943
Wah ChiuDepartment of Bioengineering and James H. Clark Center, Stanford University, Stanford, CA, USA. wahc@stanford.edu.ORCID 0000-0002-8910-3078
Clark University · USPaul Scherrer Institute · CHSLAC National Accelerator Laboratory · USStanford University · USUniversity of California, Berkeley · US

Funding

3 D ELECTRON MICROSCOPY OF MACROMOLECULES (5P41RR002250-27)P41GM103832 · NIGMS · STANFORD UNIVERSITY · PI CHIU, WAH · 2012 to 2019
$15.1M
Project 3: TRiC modulation of CNS pathogenesis in HD mouse modelsP01NS092525 · NINDS · UNIVERSITY OF CALIFORNIA-IRVINE · PI THOMPSON, LESLIE MICHELS · 2016 to 2020
$6.3M
NIGMS NIH HHS P41 GM103832NINDS NIH HHS P01 NS092525
6 · The paper itself

Abstract

Huntington disease (HD) is a neurodegenerative trinucleotide repeat disorder caused by an expanded poly-glutamine (polyQ) tract in the mutant huntingtin (mHTT) protein. The formation and topology of filamentous mHTT inclusions in the brain (hallmarks of HD implicated in neurotoxicity) remain elusive. Using cryo-electron tomography and subtomogram averaging, here we show that mHTT exon 1 and polyQ-only aggregates in vitro are structurally heterogenous and filamentous, similar to prior observations with other methods. Yet, we find filaments in both types of aggregates under ~2 nm in width, thinner than previously reported, and regions forming large sheets. In addition, our data show a prevalent subpopulation of filaments exhibiting a lumpy slab morphology in both aggregates, supportive of the polyQ core model. This provides a basis for future cryoET studies of various aggregated mHTT and polyQ constructs to improve their structure-based modeling as well as their identification in cells without fusion tags.

Indexed as

MutationElectron Microscope TomographyExonsHumansHuntingtin ProteinHuntington DiseaseMutant ProteinsPeptidesProtein AggregatesProtein Aggregation, PathologicalProtein ConformationHTT protein, humanHuntingtin ProteinMutant ProteinsPeptidespolyglutamineProtein Aggregates

Identifiers

PMID34239038
PMCPMC8266869
OpenAlexW3182916186

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.