Evidence map›Paper›PMID 24078633›Full record

ArticleThe Journal of biological chemistry2013

A mechanistic basis for the co-evolution of chicken tapasin and major histocompatibility complex class I (MHC I) proteins.

Andy van Hateren, Rachel Carter, Alistair Bailey, Nasia Kontouli, Anthony P Williams, Jim Kaufman, Tim Elliott

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

32 citing papers in PubMed, 49 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Andy van HaterenFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom,; the Institute for Animal Health, Compton RG20 7NN, United Kingdom.
Rachel CarterFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom.
Alistair BaileyFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom.
Nasia KontouliFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom.
Anthony P WilliamsFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom.
Jim Kaufmanthe Institute for Animal Health, Compton RG20 7NN, United Kingdom; the Departments of Pathology and Veterinary Medicine, University of Cambridge, Cambridge CB2 1QP, United Kingdom. Electronic address: jfk31@cam.ac.uk.
Tim ElliottFrom the Faculty of Medicine and Institute for Life Science, University of Southampton, Southampton SO16 6YD, United Kingdom,. Electronic address: tje@soton.ac.uk.
University of Southampton · GBThe Pirbright Institute · GBUniversity of Cambridge · GB

Funding

Cancer Research UK C7056A
6 · The paper itself

Abstract

MHC class I molecules display peptides at the cell surface to cytotoxic T cells. The co-factor tapasin functions to ensure that MHC I becomes loaded with high affinity peptides. In most mammals, the tapasin gene appears to have little sequence diversity and few alleles and is located distal to several classical MHC I loci, so tapasin appears to function in a universal way to assist MHC I peptide loading. In contrast, the chicken tapasin gene is tightly linked to the single dominantly expressed MHC I locus and is highly polymorphic and moderately diverse in sequence. Therefore, tapasin-assisted loading of MHC I in chickens may occur in a haplotype-specific way, via the co-evolution of chicken tapasin and MHC I. Here we demonstrate a mechanistic basis for this co-evolution, revealing differences in the ability of two chicken MHC I alleles to bind and release peptides in the presence or absence of tapasin, where, as in mammals, efficient self-loading is negatively correlated with tapasin-assisted loading. We found that a polymorphic residue in the MHC I α3 domain thought to bind tapasin influenced both tapasin function and intrinsic peptide binding properties. Differences were also evident between the MHC alleles in their interactions with tapasin. Last, we show that a mismatched combination of tapasin and MHC alleles exhibit significantly impaired MHC I maturation in vivo and that polymorphic MHC residues thought to contact tapasin influence maturation efficiency. Collectively, this supports the possibility that tapasin and BF2 proteins have co-evolved, resulting in allele-specific peptide loading in vivo.

Indexed as

AllelesEvolution, MolecularAnimalsChickensGenetic LociHistocompatibility Antigens Class IHumansMembrane Transport ProteinsProtein Structure, TertiaryHistocompatibility Antigens Class IMembrane Transport ProteinstapasinAntigen PresentationChicken MHCCo-evolutionEvolutionImmunologyMajor Histocompatibility Complex (MHC)Peptide SelectionProtein-Protein InteractionsTapasin

Identifiers

PMID24078633
PMCPMC3820913
OpenAlexW2004073131

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.