Evidence map›Paper›PMID 22098747›Full record

ArticleBiophysical journal2011

Experimentally derived structural constraints for amyloid fibrils of wild-type transthyretin.

David A Bateman, Robert Tycko, Reed B Wickner

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2011. 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
1.2field-weighted citation impact, top 23% 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, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Anti-prion systems in yeast.The Journal of biological chemistry · 2019
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Atomic Resolution Structure of Monomorphic Aβ42 Amyloid Fibrils.Journal of the American Chemical Society · 2016
    Article
  13. Transthyretin variants with improved inhibition of β-amyloid aggregation.Protein engineering, design & selection : PEDS · 2016
    Article
  14. Article
  15. Article
  16. Locating folds of the in-register parallel β-sheet of the Sup35p prion domain infectious amyloid.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  17. 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

3 authors at 1 institution in 1 country.

David A BatemanLaboratory of Biochemistry and Genetics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda Maryland, USA.
Robert Tycko
Reed B Wickner
National Institutes of Health · US

Funding

Prions of Yeast and Anti-Prion SystemsZIADK024950 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI WICKNER, REED B. · 2009 to 2025
$25.2M
Structural Studies of Prion Fibrils and Other Protein FibrilsZIADK075031 · NIDDK · NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES · PI TYCKO, ROBERT · 2009 to 2025
$7.3M
Intramural NIH HHS
6 · The paper itself

Abstract

Transthyretin (TTR) is a largely β-sheet serum protein responsible for transporting thyroxine and vitamin A. TTR is found in amyloid deposits of patients with senile systemic amyloidosis. TTR mutants lead to familial amyloidotic polyneuropathy and familial amyloid cardiomyopathy, with an earlier age of onset. Studies of amyloid fibrils of familial amyloidotic polyneuropathy mutant TTR suggest a structure similar to the native state with only a simple opening of a β-strand-loop-strand region exposing the two main β-sheets of the protein for fibril elongation. However, we find that the wild-type TTR sequence forms amyloid fibrils that are considerably different from the previously suggested amyloid structure. Using protease digestion with mass spectrometry, we observe the amyloid core to be primarily composed of the C-terminal region, starting around residue 50. Solid-state NMR measurements prove that TTR differs from other pathological amyloids in not having an in-register parallel β-sheet architecture. We also find that the TTR amyloid is incapable of binding thyroxine as monitored by either isothermal calorimetry or 1,8-anilinonaphthalene sulfonate competition. Taken together, our experiments are consistent with a significantly different configuration of the β-sheets compared to the previously suggested structure.

Indexed as

AmyloidMagnetic Resonance SpectroscopyMass SpectrometryModels, MolecularPrealbuminProtein BindingProtein Structure, SecondaryThyroxineAmyloidPrealbuminThyroxine

Identifiers

PMID22098747
PMCPMC3218328
OpenAlexW1997405117

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.