Evidence map›Paper›PMID 21321107›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2011

Primordial linkage of β2-microglobulin to the MHC.

Yuko Ohta, Takashi Shiina, Rebecca L Lohr, Kazuyoshi Hosomichi, Toni I Pollin, Edward J Heist, Shingo Suzuki, Hidetoshi Inoko, Martin F Flajnik

Abstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. The new W family reconstructs the evolution of MHC genes.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  10. Discovery of an ancient MHC category with both class I and class II features.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. An Ancient, MHC-Linked, Nonclassical Class I Lineage in Cartilaginous Fish.Journal of immunology (Baltimore, Md. : 1950) · 2020
    Article
  18. Article
  19. Review
  20. Evidence for a Causal Role of the SH2B3-βHypertension (Dallas, Tex. : 1979) · 2019
    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

9 authors.

Yuko OhtaDepartment of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201, USA. yota@som.umaryland.edu
Takashi Shiina
Rebecca L Lohr
Kazuyoshi Hosomichi
Toni I Pollin
Edward J Heist
Shingo Suzuki
Hidetoshi Inoko
Martin F Flajnik

Funding

ONTOGENY AND PHYLOGENY OF THE MHCR01AI027877 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI FLAJNIK, MARTIN F · 1995 to 2009
$3.2M
ONTOGENY AND PHYLOGENY OF THE MHCR29AI027877 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI FLAJNIK, MARTIN F. · 1989 to 1993
–
NIAID NIH HHS AI27877NIAID NIH HHS R01 AI027877
6 · The paper itself

Abstract

β2-Microglobulin (β2M) is believed to have arisen in a basal jawed vertebrate (gnathostome) and is the essential L chain that associates with most MHC class I molecules. It contains a distinctive molecular structure called a constant-1 Ig superfamily domain, which is shared with other adaptive immune molecules including MHC class I and class II. Despite its structural similarity to class I and class II and its conserved function, β2M is encoded outside the MHC in all examined species from bony fish to mammals, but it is assumed to have translocated from its original location within the MHC early in gnathostome evolution. We screened a nurse shark bacterial artificial chromosome library and isolated clones containing β2M genes. A gene present in the MHC of all other vertebrates (ring3) was found in the bacterial artificial chromosome clone, and the close linkage of ring3 and β2M to MHC class I and class II genes was determined by single-strand conformational polymorphism and allele-specific PCR. This study satisfies the long-held conjecture that β2M was linked to the primordial MHC (Ur MHC); furthermore, the apparent stability of the shark genome may yield other genes predicted to have had a primordial association with the MHC specifically and with immunity in general.

Indexed as

AnimalsBase Sequencebeta 2-MicroglobulinCattleChickensConserved SequenceDogsFemaleGenes, MHC Class IGenes, MHC Class IIGenetic LinkageHumansMaleMiceMolecular Sequence DataOpossumsbeta 2-Microglobulin

Identifiers

PMID21321107
PMCPMC3805034

What OpenQuestion holds

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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.