Evidence map›Paper›PMID 21319744›Full record

ArticleJournal of the American Chemical Society2011

Macrocyclic β-sheet peptides that inhibit the aggregation of a tau-protein-derived hexapeptide.

Jing Zheng, Cong Liu, Michael R Sawaya, Balraju Vadla, Shafiullah Khan, R Jeremy Woods, David Eisenberg, Warren J Goux, James S Nowick

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

54 citing papers in PubMed, 123 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Structure-based design of nanobodies that inhibit seeding of Alzheimer's patient-extracted tau fibrils.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  7. Review
  8. Three-repeat and four-repeat tau isoforms form different oligomers.Protein science : a publication of the Protein Society · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. The structure and phase of tau: from monomer to amyloid filament.Cellular and molecular life sciences : CMLS · 2021
    Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Jing ZhengDepartment of Chemistry, University of California, Irvine, Irvine, California 92697-2025, USA.
Cong Liu
Michael R Sawaya
Balraju Vadla
Shafiullah Khan
R Jeremy Woods
David Eisenberg
Warren J Goux
James S Nowick
University of California, Irvine · USHoward Hughes Medical Institute · USThe University of Texas at Dallas · US

Funding

Structural Biology of Amyloid DiseaseR01AG029430 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI EISENBERG, DAVID · 2007 to 2016
$3.9M
CHEMICAL MODELS OF PROTEIN BETA SHEET INTERACTIONSR01GM049076 · NIGMS · UNIVERSITY OF CALIFORNIA-IRVINE · PI NOWICK, JAMES S · 1999 to 2009
$1.7M
NEW STRATEGIES FOR FORMATION OF PEPTIDE BETA-SHEETSR29GM049076 · NIGMS · UNIVERSITY OF CALIFORNIA IRVINE · PI NOWICK, JAMES S · 1994 to 1998
–
Howard Hughes Medical InstituteNIA NIH HHS AG-029430NIA NIH HHS R01 AG029430NIGMS NIH HHS GM-49076NIGMS NIH HHS R01 GM049076
6 · The paper itself

Abstract

This paper describes studies of a series of macrocyclic β-sheet peptides 1 that inhibit the aggregation of a tau-protein-derived peptide. The macrocyclic β-sheet peptides comprise a pentapeptide "upper" strand, two δ-linked ornithine turn units, and a "lower" strand comprising two additional residues and the β-sheet peptidomimetic template "Hao". The tau-derived peptide Ac-VQIVYK-NH(2) (AcPHF6) aggregates in solution through β-sheet interactions to form straight and twisted filaments similar to those formed by tau protein in Alzheimer's neurofibrillary tangles. Macrocycles 1 containing the pentapeptide VQIVY in the "upper" strand delay and suppress the onset of aggregation of the AcPHF6 peptide. Inhibition is particularly pronounced in macrocycles 1a, 1d, and 1f, in which the two residues in the "lower" strand provide a pattern of hydrophobicity and hydrophilicity that matches that of the pentapeptide "upper" strand. Inhibition varies strongly with the concentration of these macrocycles, suggesting that it is cooperative. Macrocycle 1b containing the pentapeptide QIVYK shows little inhibition, suggesting the possibility of a preferred direction of growth of AcPHF6 β-sheets. On the basis of these studies, a model is proposed in which the AcPHF6 amyloid grows as a layered pair of β-sheets and in which growth is blocked by a pair of macrocycles that cap the growing paired hydrogen-bonding edges. This model provides a provocative and appealing target for future inhibitor design.

Indexed as

Amino Acid SequenceAmyloidCrystallography, X-RayHumansMacrocyclic CompoundsModels, MolecularOligopeptidesPeptidesProtein Structure, SecondaryTauopathiestau Proteinsacetyl-valyl-glutaminyl-isoleucyl-valyl-tyrosyl-lysinamideAmyloidMacrocyclic CompoundsOligopeptidesPeptidestau Proteins

Identifiers

PMID21319744
PMCPMC3048834
OpenAlexW2066395642

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.