Evidence map›Paper›PMID 8613141›Full record

ArticleImmunogenetics1996

Trans-species polymorphism of class II Mhc loci in danio fishes.

R Graser, C O'hUigin, V Vincek, A Meyer, J Klein

Open access · greenAbstract readComparative Study
PubMed Publisher
In one paragraph

Article in Immunogenetics, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed, 72 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

5 authors at 3 institutions in 2 countries.

R GraserMax-Planck-Institut für Biologie, Abteilung Immungenetik, Tübingen, Germany.
C O'hUigin
V Vincek
A Meyer
J Klein
Max Planck Institute for Biology · DEUniversity of Miami · USStony Brook University · US

Funding

POLYMORPHISM OF THE MAJOR HISTOCOMPATIBILITY COMPLEXR01AI023667 · NIAID · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI KLEIN, JAN · 1986 to 1995
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NIAID NIH HHS AI 23667
6 · The paper itself

Abstract

A characteristic feature of the major histocompatibility complex (Mhc) polymorphism in mammals is the existence of allelic lineages shared by related species. This trans-species polymorphism has thus far been documented only in primates, rodents, and artiodactyls. In this communication we provide evidence that it also exists in cyprinid (bony) fishes at the class II A and B loci coding for the alpha and beta polypeptide chains of the class II alpha:beta heterodimers. The study has focused on three species of the family Cyprinidae, subfamily Rasborinae: the zebrafish (Danio rerio), the giant danio (D. malabaricus), and the pearl danio (D. albolineatus). The polymerase chain reaction was used to amplify and then sequence intron 1 and exon 2 of the class II B loci and exon 2 of the class II A loci in these species. Phylogenetic analysis of the sequences revealed the existence of allelic lineages whose divergence predates the divergence of the three species at both the A and B loci. The lineages at the B locus in particular are separated by large genetic distances. The polymorphism is concentrated in the peptide-binding region sites and is apparently maintained by balancing selection. Sharing of this unique Mhc feature by both bony fishes and mammals suggests that the main function of the Mhc (presentation of peptides to T lymphocytes) has not changed during the last 400 million years of its evolution.

Indexed as

Genes, MHC Class IIAmino Acid SequenceAnimalsBase SequenceConsensus SequenceDNA PrimersMolecular Sequence DataPhylogenyPolymorphism, GeneticSequence AlignmentSequence Homology, Amino AcidSequence Homology, Nucleic AcidZebrafishDNA Primers

Identifiers

PMID8613141
OpenAlexW1971629362

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.