Evidence map›Paper›PMID 19554247›Full record

ArticleJournal of molecular evolution2009

Aplysia cys-loop glutamate-gated chloride channels reveal convergent evolution of ligand specificity.

JacSue Kehoe, Svetlana Buldakova, Francine Acher, Joseph Dent, Piotr Bregestovski, Jonathan Bradley

Abstract read
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In one paragraph

Article in Journal of molecular evolution, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 18% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Immunochemical Localization of GABANeurochemical research · 2016
    Article
  10. Complex Homology and the Evolution of Nervous Systems.Trends in ecology & evolution · 2016
    Review
  11. Article
  12. Convergence of ion channel genome content in early animal evolution.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Glutamate-gated chloride channels.The Journal of biological chemistry · 2012
    Review
  20. 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

6 authors at 5 institutions in 3 countries.

JacSue KehoeCNRS, UMR, Université Paris Descartes, France. jacsue.kehoe@parisdescartes.fr
Svetlana Buldakova
Francine Acher
Joseph Dent
Piotr Bregestovski
Jonathan Bradley
Délégation Paris 5 · FRCentre National de la Recherche Scientifique · FRInserm · FRInstitut de Neurobiologie de la Méditerranée · FRMcGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Among the members of the superfamily of cys-loop ligand-gated ion channels (LGICs) are receptors distinguished by the presence of two cys-loops in the ligand-binding domain, for example, the glycine receptor. Such receptors have thus far been cloned only from vertebrates and from ecdysozoa (arthropods and nematodes). We have now cloned and expressed two 2-cys-loop receptors from Aplysia californica, a lophotrocozoan, and have shown that they form homomeric glutamate receptors. We have also built up a database including the two receptors cloned here, previously cloned vertebrate and ecdysozoan 2-cys-loop receptors taken from GenBank, and the same type of receptors obtained by a search of recently cloned genomes, including two non-vertebrate chordates, an echinoderm, a crustacean, an annelid, and another mollusk. We subjected these receptors to phylogenetic analysis, alone and in combination with GABA-A receptors from the same phyla and from a recently cloned cnidarian. The phylogenetic analysis revealed the presence of two independent clades of glutamate receptors: one from lophotrocozoa and other from ecdysozoa, and suggests that the ancestors of the current 2-cys-loop receptor types diverged from the GABA-A receptors and from each other before the bilateria-cnidaria split. Finally, combining the results from the phylogenetic analysis with those obtained from an analysis of the 2-cys-loop receptors in light of recently published hypotheses concerning the glycine binding pocket, we predict that glycine receptors are not exclusively a vertebrate-receptor type.

Indexed as

Evolution, MolecularAlanineAmino Acid SequenceAnimalsAplysiaChloride ChannelsCysteineGlycineIon Channel GatingIvermectinLigandsMolecular Sequence DataPhylogenyProtein SubunitsReceptors, GABA-ASequence AlignmentAlanineChloride ChannelsCysteineglutamate-gated chloride channelsGlycineIvermectinLigandsProtein SubunitsReceptors, GABA-A

Identifiers

PMID19554247
OpenAlexW2023603752

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.