Evidence map›Paper›PMID 16586016›Full record

ArticleJournal of molecular evolution2006

Evidence for a diverse Cys-loop ligand-gated ion channel superfamily in early bilateria.

Joseph A Dent

Abstract read
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In one paragraph

Article in Journal of molecular evolution, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

41 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. MolluscaGenes: A Transcriptomic Database for the Mollusca.bioRxiv : the preprint server for biology · 2026
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  5. The Remarkable Outer Hair Cell: Proceedings of a Symposium in Honour of W. E. Brownell.Journal of the Association for Research in Otolaryngology : JARO · 2023
    Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Study on the effect of an ion channel inhibitor "Fluralaner" onJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2020
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Immunochemical Localization of GABANeurochemical research · 2016
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  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

1 author at 1 institution in 1 country.

Joseph A DentDepartment of Biology, McGill University, 1205 Dr. Penfield Avenue, Montreal, Quebec H3A 1B1, Canada. joseph.dent@mcgill.ca
McGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The genome sequences of Caenorhabditis elegans and Drosophila melanogaster reveal a diversity of cysteine-loop ligand-gated ion channels (Cys-loop LGICs) not found in vertebrates. To better understand the evolution of this gene superfamily, I compared all Cys-loop LGICs from rat, the primitive chordate Ciona intestinalis, Drosophila, and C. elegans. There are two clades of GABA receptor subunits that include both vertebrate and invertebrate orthologues. In addition, I identified nine clades of anion channel subunits found only in invertebrates, including three that are specific to C. elegans and two found only in Drosophila. One well-defined clade of vertebrate cation channel subunits, the alpha 7 nicotinic acetylcholine receptor subunits (nAChR), includes invertebrate orthologues. There are two clades of invertebrate nAChRs, one of alpha-type subunits and one of non-alpha subunits, that are most similar to the two clades of vertebrate neuronal and muscle alpha and non-alpha subunits. There is a large group of divergent C. elegans nAChR-like subunits partially resolved into clades but no orthologues of 5HT3-type serotonin receptors in the invertebrates. The topology of the trees suggests that most of the invertebrate-specific Cys-loop LGIC clades were present in the common ancestor of chordates and ecdysozoa. Many of these disappeared from the chordates. Subsequently, selected subunit genes expanded to form large subfamilies.

Indexed as

Amino Acid SequenceAnimalsCiona intestinalisCysteineEvolution, MolecularInvertebratesIon Channel GatingIon ChannelsLigandsMammalsModels, MolecularMolecular Sequence DataMultigene FamilyPhylogenyReceptors, GABAReceptors, NicotinicCysteineIon ChannelsLigandsReceptors, GABAReceptors, Nicotinic

Identifiers

PMID16586016
OpenAlexW1989810402

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.