Evidence map›Paper›PMID 24338015›Full record

ArticleThe Journal of biological chemistry2014

Conformational stability of mammalian prion protein amyloid fibrils is dictated by a packing polymorphism within the core region.

Nathan J Cobb, Marcin I Apostol, Shugui Chen, Vytautas Smirnovas, Witold K Surewicz

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Aggregation Condition-Structure Relationship of Mouse Prion Protein Fibrils.International journal of molecular sciences · 2021
    Article
  8. Article
  9. Review
  10. Article
  11. Article
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  15. Article
  16. Review
  17. Article
  18. Prion Strains and Transmission Barrier Phenomena.Pathogens (Basel, Switzerland) · 2018
    Review
  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

5 authors at 2 institutions in 2 countries.

Nathan J CobbFrom the Departments of Physiology and Biophysics.
Marcin I Apostol
Shugui Chen
Vytautas Smirnovas
Witold K Surewicz
Case Western Reserve University · USInstitute of Molecular Biology and Biophysics · RU

Funding

Conformational Conversions of Prion ProteinR01NS044158 · NINDS · CASE WESTERN RESERVE UNIVERSITY · PI SUREWICZ, WITOLD K · 2002 to 2013
$4.0M
Replication mechanism of human prionsR01NS074317 · NINDS · CASE WESTERN RESERVE UNIVERSITY · PI SAFAR, JIRI G., SUREWICZ, WITOLD K · 2011 to 2015
$2.6M
NINDS NIH HHS NS044158NINDS NIH HHS NS074317NINDS NIH HHS R01 NS044158NINDS NIH HHS R01 NS074317
6 · The paper itself

Abstract

Mammalian prion strains are believed to arise from the propagation of distinct conformations of the misfolded prion protein PrP(Sc). One key operational parameter used to define differences between strains has been conformational stability of PrP(Sc) as defined by resistance to thermal and/or chemical denaturation. However, the structural basis of these stability differences is unknown. To bridge this gap, we have generated two strains of recombinant human prion protein amyloid fibrils that show dramatic differences in conformational stability and have characterized them by a number of biophysical methods. Backbone amide hydrogen/deuterium exchange experiments revealed that, in sharp contrast to previously studied strains of infectious amyloid formed from the yeast prion protein Sup35, differences in β-sheet core size do not underlie differences in conformational stability between strains of mammalian prion protein amyloid. Instead, these stability differences appear to be dictated by distinct packing arrangements (i.e. steric zipper interfaces) within the amyloid core, as indicated by distinct x-ray fiber diffraction patterns and large strain-dependent differences in hydrogen/deuterium exchange kinetics for histidine side chains within the core region. Although this study was limited to synthetic prion protein amyloid fibrils, a similar structural basis for strain-dependent conformational stability may apply to brain-derived PrP(Sc), especially because large strain-specific differences in PrP(Sc) stability are often observed despite a similar size of the PrP(Sc) core region.

Indexed as

AmyloidAnimalsHumansMammalsPolymorphism, GeneticPrion DiseasesProtein StabilityProtein Structure, SecondaryProteostasis DeficienciesPrPSc ProteinsRecombinant ProteinsAmyloidPrPSc ProteinsRecombinant ProteinsAmyloidNeurodegenerative DiseasesPrionsProtein AggregationProtein Misfolding

Identifiers

PMID24338015
PMCPMC3908398
OpenAlexW1995845718

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.