Evidence map›Paper›PMID 26565023›Full record

ArticleThe Journal of biological chemistry2016

Contributions of the Prion Protein Sequence, Strain, and Environment to the Species Barrier.

Aditi Sharma, Kathryn L Bruce, Buxin Chen, Stefka Gyoneva, Sven H Behrens, Andreas S Bommarius, Yury O Chernoff

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

19 citing papers in PubMed, 47 citations in OpenAlex.

  1. Review
  2. Article
  3. Decreased Water Mobility Contributes To Increased α-Synuclein Aggregation.Angewandte Chemie (International ed. in English) · 2023
    Article
  4. Decreased Water Mobility Contributes To Increased α-Synuclein Aggregation.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  5. Article
  6. Review
  7. α-Synuclein modulates tau spreading in mouse brains.The Journal of experimental medicine · 2021
    Article
  8. Article
  9. Relevance of host tau in tau seeding and spreading in tauopathies.Brain pathology (Zurich, Switzerland) · 2020
    Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Seeding and cross-seeding fibrillation of N-terminal prion protein peptides PrP(120-144).Protein science : a publication of the Protein Society · 2018
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

7 authors at 2 institutions in 2 countries.

Aditi SharmaFrom the Schools of Chemical & Biomolecular Engineering and andreas.bommarius@chbe.gatech.edu.
Kathryn L BruceBiology, Georgia Institute of Technology, Atlanta, Georgia 30332 and.
Buxin ChenBiology, Georgia Institute of Technology, Atlanta, Georgia 30332 and.
Stefka GyonevaBiology, Georgia Institute of Technology, Atlanta, Georgia 30332 and.
Sven H BehrensFrom the Schools of Chemical & Biomolecular Engineering and.
Andreas S BommariusFrom the Schools of Chemical & Biomolecular Engineering and andreas.bommarius@chbe.gatech.edu.
Yury O ChernoffBiology, Georgia Institute of Technology, Atlanta, Georgia 30332 and the Laboratory of Amyloid Biology and Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg 199034, Russia yury.chernoff@biology.gatech.edu.ORCID http://orcid.org/0000-0002-8934-9051
Georgia Institute of Technology · USSt Petersburg University · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amyloid propagation requires high levels of sequence specificity so that only molecules with very high sequence identity can form cross-β-sheet structures of sufficient stringency for incorporation into the amyloid fibril. This sequence specificity presents a barrier to the transmission of prions between two species with divergent sequences, termed a species barrier. Here we study the relative effects of protein sequence, seed conformation, and environment on the species barrier strength and specificity for the yeast prion protein Sup35p from three closely related species of the Saccharomyces sensu stricto group; namely, Saccharomyces cerevisiae, Saccharomyces bayanus, and Saccharomyces paradoxus. Through in vivo plasmid shuffle experiments, we show that the major characteristics of the transmission barrier and conformational fidelity are determined by the protein sequence rather than by the cellular environment. In vitro data confirm that the kinetics and structural preferences of aggregation of the S. paradoxus and S. bayanus proteins are influenced by anions in accordance with their positions in the Hofmeister series, as observed previously for S. cerevisiae. However, the specificity of the species barrier is primarily affected by the sequence and the type of anion present during the formation of the initial seed, whereas anions present during the seeded aggregation process typically influence kinetics rather than the specificity of prion conversion. Therefore, our work shows that the protein sequence and the conformation variant (strain) of the prion seed are the primary determinants of cross-species prion specificity both in vivo and in vitro.

Indexed as

Host SpecificityBiomarkersChloridesFungal ProteinsGene DeletionKineticsMutationPeptide Termination FactorsPerchloratesPrionsProtein AggregatesProtein ConformationRecombinant ProteinsSaccharomycesSaccharomyces cerevisiaeSaccharomyces cerevisiae ProteinsBiomarkersChloridesFungal ProteinsPeptide Termination FactorsperchloratePerchloratesPrionsProtein AggregatesRecombinant ProteinsSaccharomyces cerevisiae ProteinsSulfatesSup35 protein, Candida albicansSUP35 protein, S cerevisiaeamyloidHofmeister seriesprionprotein conformationprotein evolutionspecies barrieryeast

Identifiers

PMID26565023
PMCPMC4714215
OpenAlexW2232870691

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.