Evidence map›Paper›PMID 25451031›Full record

ArticleJournal of molecular biology2015

Conformation-dependent epitopes recognized by prion protein antibodies probed using mutational scanning and deep sequencing.

Kyle M Doolan, David W Colby

Open access · greenAbstract read
In one paragraph

Article in Journal of molecular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

34 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Review
  3. Genetically EncodedACS synthetic biology · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Neural regeneration research · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Deep sequencing methods for protein engineering and design.Current opinion in structural biology · 2017
    Review
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

2 authors at 1 institution in 1 country.

Kyle M DoolanDepartment of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
David W ColbyDepartment of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA. Electronic address: colby@udel.edu.
University of Delaware · US

Funding

Predictive Modeling & Optimal Control Framework for Model-Based Epidemic Response in DelawareP20GM103446 · NIGMS · UNIVERSITY OF DELAWARE · PI Jeffrey L Caplan · 2012 to 2026
$67.2M
VOLUMETRIC BREAST DENSITY ESTIMATION USING BREAST SURFACE RECONSTRUCTEDP20RR016472 · NCRR · UNIVERSITY OF DELAWARE · PI STANHOPE, STEVEN J. · 2001 to 2011
$37.6M
CHEMISTRY-BIOLOGY INTERFACE PREDOCTORAL TRAININGT32GM008550 · NIGMS · UNIVERSITY OF DELAWARE · PI BAHNSON, BRIAN J · 1994 to 2018
$5.0M
Detection and structural analysis of misfolded proteins causing neurodegenerationR00NS064173 · NINDS · UNIVERSITY OF DELAWARE · PI COLBY, DAVID W · 2010 to 2012
$694k
Detection and structural analysis of misfolded proteins causing neurodegenerationK99NS064173 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI COLBY, DAVID W · 2009 to 2010
$180k
NCRR NIH HHS 5 P20 RR016472-12NCRR NIH HHS P20 RR016472NIGMS NIH HHS 5 T32 GM008550-17NIGMS NIH HHS 8 P20 GM103446-13NIGMS NIH HHS P20 GM103446NIGMS NIH HHS T32 GM008550NINDS NIH HHS K99 NS064173NINDS NIH HHS NS064173NINDS NIH HHS R00 NS064173
6 · The paper itself

Abstract

Prion diseases are caused by a structural rearrangement of the cellular prion protein, PrP(C), into a disease-associated conformation, PrP(Sc), which may be distinguished from one another using conformation-specific antibodies. We used mutational scanning by cell-surface display to screen 1341 PrP single point mutants for attenuated interaction with four anti-PrP antibodies, including several with conformational specificity. Single-molecule real-time gene sequencing was used to quantify enrichment of mutants, returning 26,000 high-quality full-length reads for each screened population on average. Relative enrichment of mutants correlated to the magnitude of the change in binding affinity. Mutations that diminished binding of the antibody ICSM18 represented the core of contact residues in the published crystal structure of its complex. A similarly located binding site was identified for D18, comprising discontinuous residues in helix 1 of PrP, brought into close proximity to one another only when the alpha helix is intact. The specificity of these antibodies for the normal form of PrP likely arises from loss of this conformational feature after conversion to the disease-associated form. Intriguingly, 6H4 binding was found to depend on interaction with the same residues, among others, suggesting that its ability to recognize both forms of PrP depends on a structural rearrangement of the antigen. The application of mutational scanning and deep sequencing provides residue-level resolution of positions in the protein-protein interaction interface that are critical for binding, as well as a quantitative measure of the impact of mutations on binding affinity.

Indexed as

AnimalsBinding SitesCell Adhesion MoleculesDNA, BacterialDNA, FungalEpitope MappingEpitopesEscherichia coliGene RearrangementHigh-Throughput Nucleotide SequencingMiceMutationPrionsProtein BindingProtein Interaction Domains and MotifsSaccharomyces cerevisiaeAGA2 protein, S cerevisiaeCell Adhesion MoleculesDNA, BacterialDNA, FungalEpitopesPrionsSaccharomyces cerevisiae ProteinsSingle-Chain Antibodiesdiscontinuous epitopeEP1802Yepitope mappingSMRTyeast surface display

Identifiers

PMID25451031
PMCPMC5885637
OpenAlexW2156769944

What OpenQuestion holds

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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.