Evidence map›Paper›PMID 18940927›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

Evolutionary redefinition of immunoglobulin light chain isotypes in tetrapods using molecular markers.

Sabyasachi Das, Nikolas Nikolaidis, Jan Klein, Masatoshi Nei

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. 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
2.3field-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

32 citing papers in PubMed, 65 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Characterization of immunoglobulinFrontiers in immunology · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Structural reconstruction of protein ancestry.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  12. Article
  13. Article
  14. Characterization of Lamprey BAFF-like Gene: Evolutionary Implications.Journal of immunology (Baltimore, Md. : 1950) · 2016
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Genomic donor cassette sharing during VLRA and VLRC assembly in jawless vertebrates.Proceedings of the National Academy of Sciences of the United States of America · 2014
    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

4 authors at 1 institution in 1 country.

Sabyasachi DasInstitute of Molecular Evolutionary Genetics and Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
Nikolas Nikolaidis
Jan Klein
Masatoshi Nei
Pennsylvania State University · US

Funding

THEORETICAL POPULATION GENETICS AND ITS APPLICATIONSR01GM020293 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI NEI, MASATOSHI · 1985 to 2009
$1.8M
NIGMS NIH HHS GM020293-35NIGMS NIH HHS R01 GM020293
6 · The paper itself

Abstract

The phylogenetic relationships of Ig light chain (IGL) genes are difficult to resolve, because these genes are short and evolve relatively fast. Here, we classify the IGL sequences from 12 tetrapod species into three distinct groups (kappa, lambda, and sigma isotypes) using conserved amino acid residues, recombination signal sequences, and genomic organization of IGL genes as cladistic markers. From the distribution of the markers we conclude that the earliest extant tetrapods, the amphibians, possess three IGL isotypes: kappa, lambda, and sigma. Of these, two (kappa and lambda) are also found in reptiles and some mammals. The lambda isotype is found in all tetrapods tested to date, whereas the kappa isotype seems to have been lost at least in some birds and in the microbat. Conservation of the cladistic molecular markers suggests that they are associated with functional specialization of the three IGL isotypes. The genomic maps of IGL loci reveal multiple gene rearrangements that occurred in the evolution of tetrapod species. These rearrangements have resulted in interspecific variation of the genomic lengths of the IGL loci and the number and order of IGL constituent genes, but the overall organization of the IGL loci has not changed.

Indexed as

Evolution, MolecularVertebratesAmino Acid SequenceAmphibiansAnimalsBiomarkersGene RearrangementGenomicsImmunoglobulin kappa-ChainsImmunoglobulin lambda-ChainsImmunoglobulin Light ChainsImmunoglobulin Light Chains, SurrogateMammalsPhylogenyReptilesBiomarkersImmunoglobulin kappa-ChainsImmunoglobulin lambda-ChainsImmunoglobulin Light ChainsImmunoglobulin Light Chains, Surrogate

Identifiers

PMID18940927
PMCPMC2575474
OpenAlexW2114367977

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.