Evidence map›Paper›PMID 9159152›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1997

Major histocompatibility complex gene mapping in the amphibian Xenopus implies a primordial organization.

M Nonaka, C Namikawa, Y Kato, M Sasaki, L Salter-Cid, M F Flajnik

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1997. 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
2.6field-weighted citation impact, top 10% 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, 87 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. An Ancient, MHC-Linked, Nonclassical Class I Lineage in Cartilaginous Fish.Journal of immunology (Baltimore, Md. : 1950) · 2020
    Article
  6. TheAnimals : an open access journal from MDPI · 2019
    Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. The hitchhiker's guide to Xenopus genetics.Genesis (New York, N.Y. : 2000) · 2012
    Review
  16. Article
  17. Primordial linkage of β2-microglobulin to the MHC.Journal of immunology (Baltimore, Md. : 1950) · 2011
    Article
  18. Article
  19. Article
  20. Comparative and developmental study of the immune system in Xenopus.Developmental dynamics : an official publication of the American Association of Anatomists · 2009
    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

6 authors at 2 institutions in 2 countries.

M NonakaDepartment of Biochemistry, Nagoya City University Medical School, Mizuho-Ku, Nagoya 467, Japan.
C Namikawa
Y Kato
M Sasaki
L Salter-Cid
M F Flajnik
University of Miami · USNagoya City University · JP

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

One of the most provocative recent discoveries in immunology was the description of a genetic linkage in the major histocompatibility complex (MHC) between structurally unrelated genes whose products are involved in processing and presentation of antigens for recognition by T lymphocytes. Genes encoding MHC class I molecules, which bind and present at the cell surface proteolytic fragments of cytosolic proteins, are linked to nonhomologous genes whose products are involved in the production and subsequent transfer of such fragments into the endoplasmic reticulum. In mammals, the class I presentation and processing genes are found in different regions of the MHC. To examine the evolutionary origins of this genetic association, linkage studies were carried out with Xenopus, an amphibian last sharing an ancestor with mammals over 350 million years ago. In contrast to mammals, the single copy Xenopus class I gene is located between the class II and III regions, speculated to be in close linkage with the processing and transport genes. In addition to suggesting a primordial organization of genes involved in class I antigen presentation, these linkage studies further provide insight into the origins of the MHC class III region and the phenomenon of class I gene instability in the mammalian MHC.

Indexed as

Major Histocompatibility ComplexAllelesAnimalsCrosses, GeneticFemaleGenes, MHC Class IGenes, MHC Class IIGenetic LinkageHaplotypesMaleT-LymphocytesXenopus laevis

Identifiers

PMID9159152
PMCPMC20858
OpenAlexW2008595821

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.