Evidence map›Paper›PMID 25187574›Full record

ArticleMolecular & cellular proteomics : MCP2014

Peptide handling by HLA-B27 subtypes influences their biological behavior, association with ankylosing spondylitis and susceptibility to endoplasmic reticulum aminopeptidase 1 (ERAP1).

Noel García-Medel, Alejandro Sanz-Bravo, Carlos Alvarez-Navarro, Patricia Gómez-Molina, Eilon Barnea, Miguel Marcilla, Arie Admon, José A López de Castro

Open access · hybridAbstract read
In one paragraph

Article in Molecular & cellular proteomics : MCP, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 5% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

  1. Association Between Protein Tyrosine Phosphatase Non-Receptor Type 22 (PTPN22) Polymorphisms and Risk of Ankylosing Spondylitis: A Meta-analysis.Medical science monitor : international medical journal of experimental and clinical research · 2017
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  15. The Human Leukocyte Antigen (HLA)-B27 PeptidomeMolecular & cellular proteomics : MCP · 2017
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  19. Revisiting MHC genes in spondyloarthritis.Current rheumatology reports · 2015
    Review
  20. Association of PTPN22 polymorphsims and ankylosing spondylitis susceptibility.International journal of clinical and experimental pathology · 2015
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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

8 authors at 4 institutions in 2 countries.

Noel García-MedelFrom the ‡Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Madrid, Spain;
Alejandro Sanz-BravoFrom the ‡Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Madrid, Spain;
Carlos Alvarez-NavarroFrom the ‡Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Madrid, Spain;
Patricia Gómez-MolinaFrom the ‡Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Madrid, Spain;
Eilon Barnea§Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel;
Miguel Marcilla¶Functional Proteomics Unit. Centro Nacional de Biotecnología (Consejo Superior de Investigaciones Científicas), Madrid, Spain.
Arie Admon§Faculty of Biology, Technion-Israel Institute of Technology, Haifa 32000, Israel;
José A López de CastroFrom the ‡Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Madrid, Spain; aldecastro@cbm.csic.es.
Consejo Superior de Investigaciones Científicas · ESTechnion – Israel Institute of Technology · ILUniversidad Autónoma de Madrid · ESCentro de Biología Molecular Severo Ochoa · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

HLA-B27 is strongly associated with ankylosing spondylitis (AS). We analyzed the relationship between structure, peptide specificity, folding, and stability of the seven major HLA-B27 subtypes to determine the role of their constitutive peptidomes in the pathogenicity of this molecule. Identification of large numbers of ligands allowed us to define the differences among subtype-bound peptidomes and to elucidate the peptide features associated with AS and molecular stability. The peptides identified only in AS-associated or high thermostability subtypes with identical A and B pockets were longer and had bulkier and more diverse C-terminal residues than those found only among non-AS-associated/lower-thermostability subtypes. Peptides sequenced from all AS-associated subtypes and not from non-AS-associated ones, thus strictly correlating with disease, were very rare. Residue 116 was critical in determining peptide binding, thermodynamic properties, and folding, thus emerging as a key feature that unified HLA-B27 biology. HLA-B27 ligands were better suited to TAP transport than their N-terminal precursors, and AS-associated subtype ligands were better than those from non-AS-associated subtypes, suggesting a particular capacity of AS-associated subtypes to bind epitopes directly produced in the cytosol. Peptides identified only from AS-associated/high-thermostability subtypes showed a higher frequency of ERAP1-resistant N-terminal residues than ligands found only in non-AS-associated/low-thermostability subtypes, reflecting a more pronounced effect of ERAP1 on the former group. Our results reveal the basis for the relationship between peptide specificity and other features of HLA-B27, provide a unified view of HLA-B27 biology and pathogenicity, and suggest a larger influence of ERAP1 polymorphism on AS-associated than non-AS-associated subtypes.

Indexed as

AminopeptidasesCell Line, TransformedEpitopesGene ExpressionHLA-B27 AntigenHot TemperatureHumansLigandsLymphocytesMinor Histocompatibility AntigensPeptidesPolymorphism, Single NucleotideProtein FoldingProtein IsoformsProtein StabilityProteolysisAminopeptidasesEpitopesERAP1 protein, humanHLA-B27 AntigenLigandsMinor Histocompatibility AntigensPeptidesProtein IsoformsRecombinant Proteins

Identifiers

PMID25187574
PMCPMC4256490
OpenAlexW2161467556

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.