Evidence map›Paper›PMID 12606718›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2003

Lineage-restricted retention of a primitive immunoglobulin heavy chain isotype within the Dipnoi reveals an evolutionary paradox.

Tatsuya Ota, Jonathan P Rast, Gary W Litman, Chris T Amemiya

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

28 citing papers in PubMed, 76 citations in OpenAlex.

  1. Article
  2. Review
  3. The immunoglobulins of cartilaginous fishes.Developmental and comparative immunology · 2021
    Review
  4. Review
  5. Review
  6. A cold-blooded view of adaptive immunity.Nature reviews. Immunology · 2018
    Review
  7. Article
  8. Article
  9. Fish Immunoglobulins.Biology · 2016
    Review
  10. Review
  11. Genome complexity in the coelacanth is reflected in its adaptive immune system.Journal of experimental zoology. Part B, Molecular and developmental evolution · 2014
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. The origins of vertebrate adaptive immunity.Nature reviews. Immunology · 2010
    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

4 authors at 2 institutions in 1 country.

Tatsuya OtaDepartment of Biosystems Science, The Graduate University for Advanced Studies (Sokendai), Hayama, Kanagawa 240-0193, Japan.
Jonathan P Rast
Gary W Litman
Chris T Amemiya
University of South Florida St. Petersburg · USCalifornia Institute of Technology · US

Funding

Genomics Resources and Infrastucture for the ZebrafishR24RR014085 · NCRR · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AMEMIYA, CHRIS T. · 2000 to 2011
$3.3M
EARLY EVOLUTIONARY ORIGINS OF IMMUNOGLOBULIN GENESR37AI023338 · NIAID · UNIVERSITY OF SOUTH FLORIDA · PI LITMAN, GARY W · 1995 to 2003
$1.6M
NCRR NIH HHS R24 RR014085NCRR NIH HHS R24-RR14085NIAID NIH HHS R37 AI023338NIAID NIH HHS R37-AI23338
6 · The paper itself

Abstract

The lineage leading to lungfishes is one of the few major jawed vertebrate groups in which Ig heavy chain isotype structure has not been investigated at the genetic level. In this study, we have characterized three different Ig heavy chain isotypes of the African lungfish, Protopterus aethiopicus, including an IgM-type heavy chain and short and long forms of non-IgM heavy chains. Northern blot analysis as well as patterns of V(H) utilization suggest that the IgM and non-IgM isotypes are likely encoded in separate loci. The two non-IgM isotypes identified in Protopterus share structural features with the short and long forms of IgX/W/NARC (referred to hereafter as IgW), which were previously considered to be restricted to the cartilaginous fish. It seems that the IgW isotype has a far broader phylogenetic distribution than considered originally and raises questions with regard to the origin and evolutionary divergence of IgM and IgW. Moreover, its absence in other gnathostome lineages implies paradoxically that the IgW-type genes were lost from teleost and tetrapod lineages.

Indexed as

Evolution, MolecularAmino Acid SequenceAnimalsBlotting, NorthernCloning, MolecularDNA, ComplementaryFishesGene LibraryImmunoglobulin Heavy ChainsImmunoglobulin MMolecular Sequence DataPhylogenyProtein Structure, TertiaryRNASequence Homology, Amino AcidDNA, ComplementaryImmunoglobulin Heavy ChainsImmunoglobulin MRNA

Identifiers

PMID12606718
PMCPMC151370
OpenAlexW2028257173

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.