Evidence map›Paper›PMID 30242125›Full record

ArticleThe Journal of biological chemistry2018

Structural disorder in four-repeat Tau fibrils reveals a new mechanism for barriers to cross-seeding of Tau isoforms.

Hilary A Weismiller, Rachel Murphy, Guanghong Wei, Buyong Ma, Ruth Nussinov, Martin Margittai

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

28 citing papers in PubMed.

  1. Review
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  6. Review
  7. MAP2 caps tau fibrils and inhibits aggregation.The Journal of biological chemistry · 2023
    Article
  8. Review
  9. The prion-like transmission of tau oligomersFrontiers in aging neuroscience · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Regulatory mechanisms of tau protein fibrillation under the conditions of liquid-liquid phase separation.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  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

6 authors.

Hilary A WeismillerFrom the Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208.
Rachel MurphyFrom the Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208.
Guanghong Weithe Department of Physics, State Key Laboratory of Surface Physics, Key Laboratory for Computational Physical Science, Ministry of Education, Collaborative Innovation Center of Advanced Microstructures (Nanjing), Fudan University, Shanghai 200433, China.ORCID 0000-0001-5814-3328
Buyong Mathe Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland 21702, and.
Ruth Nussinovthe Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, NCI, National Institutes of Health, Frederick, Maryland 21702, and.ORCID 0000-0002-8115-6415
Martin MargittaiFrom the Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208, martin.margittai@du.edu.ORCID 0000-0003-1903-5927

Funding

Protein Structure, Stability, and Amyloid FormationZIABC010440 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI NUSSINOV, RUTH · 2009 to 2025
$11.8M
ESTABLISHING AN ASSAY FOR DETECTING SINGLE TAU FIBRILSR21AG051833 · NIA · UNIVERSITY OF DENVER (COLORADO SEMINARY) · PI MARGITTAI, MARTIN · 2016 to 2017
$401k
CCR NIH HHS HHSN261200800001CNCI NIH HHS HHSN261200800001ENIA NIH HHS R21 AG051833
6 · The paper itself

Abstract

The intracellular deposition of fibrils composed of the microtubule-associated protein Tau is a characteristic feature of Alzheimer's disease (AD) and other fatal neurodegenerative disorders collectively known as tauopathies. Short Tau fibrils spread intracerebrally through transfer between interconnected neurons. Once taken up by a recipient cell, Tau fibrils recruit Tau monomers onto their ends. Based on the number of microtubule-binding repeats, there are two distinct groups of Tau isoforms: three-repeat (3R) Tau and four-repeat (4R) Tau. In AD, all Tau isoforms are deposited, whereas in other tauopathies, only 3R or 4R Tau isoforms are deposited. The molecular basis for these isoform-specific depositions is poorly understood, although conformation-based cross-seeding barriers are key. Here, we used sedimentation assays, EPR spectroscopy, and other structural readouts to better understand the cross-seeding barriers of 4R Tau fibrils. We observed that fibrils formed from truncated Tau (K18), but not full-length Tau (htau40), exhibit a barrier that inhibits 3R Tau recruitment. Investigating an array of differently sized fragments, we found that the Tau C terminus modulates the cross-seeding barrier and that the N terminus plays a synergistic role. Two disease-associated Tau variants, P301S and P301L, also established strong cross-seeding barriers. EPR analysis indicated that fibrils seeded with truncated and mutated Tau, but not htau40, are structurally disordered in the second half of repeat four and onward. These findings suggest that the disorder in this region diminishes the ability of 4R Tau fibrils to recruit 3R Tau monomers, revealing a new mechanism for Tau cross-seeding barriers.

Indexed as

Alzheimer DiseaseAmino Acid SequenceHumansMultiprotein ComplexesProtein DomainsProtein IsoformsSequence Deletiontau ProteinsMAPT protein, humanMultiprotein ComplexesProtein Isoformstau ProteinsAlzheimer diseaseamyloidconformational changeelectron paramagnetic resonance (EPR)fibrilprionprotein aggregationprotein structureseeding barriertauopathyTau protein (Tau)

Identifiers

PMID30242125
PMCPMC6231118

What OpenQuestion holds

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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.