Evidence map›Paper›PMID 23251506›Full record

ArticlePloS one2012

Expanded functional diversity of shaker K(+) channels in cnidarians is driven by gene expansion.

Timothy Jegla, Heather Q Marlow, Bihan Chen, David K Simmons, Sarah M Jacobo, Mark Q Martindale

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.8field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
  2. Diffuse pacemaker mechanism with distinctive organization drives pulsation in the octocoralProceedings of the National Academy of Sciences of the United States of America · 2025
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  7. A broad survey of choanoflagellates revises the evolutionary history of the Shaker family of voltage-gated KProceedings of the National Academy of Sciences of the United States of America · 2024
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  17. Transcriptome-wide analysis of differential gene expression in response to light:dark cycles in a model cnidarian.Comparative biochemistry and physiology. Part D, Genomics & proteomics · 2018
    Article
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  19. Review
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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

6 authors at 3 institutions in 1 country.

Timothy JeglaDepartment of Biology and Huck Institute of Life Sciences, Eberly College of Science, Penn State University, University Park, PA, USA. tjj3@psu.edu
Heather Q Marlow
Bihan Chen
David K Simmons
Sarah M Jacobo
Mark Q Martindale
University of Hawaii System · USScripps Research Institute · USPennsylvania State University · US

Funding

Gene regulatory network evolution and the origin of biological noveltiesR01GM093116 · NIGMS · UNIVERSITY OF HAWAII AT MANOA · PI MARTINDALE, MARK Q · 2010 to 2013
$1.1M
NIGMS NIH HHS R01 GM093116
6 · The paper itself

Abstract

The genome of the cnidarian Nematostella vectensis (starlet sea anemone) provides a molecular genetic view into the first nervous systems, which appeared in a late common ancestor of cnidarians and bilaterians. Nematostella has a surprisingly large and diverse set of neuronal signaling genes including paralogs of most neuronal signaling molecules found in higher metazoans. Several ion channel gene families are highly expanded in the sea anemone, including three subfamilies of the Shaker K(+) channel gene family: Shaker (Kv1), Shaw (Kv3) and Shal (Kv4). In order to better understand the physiological significance of these voltage-gated K(+) channel expansions, we analyzed the function of 18 members of the 20 gene Shaker subfamily in Nematostella. Six of the Nematostella Shaker genes express functional homotetrameric K(+) channels in vitro. These include functional orthologs of bilaterian Shakers and channels with an unusually high threshold for voltage activation. We identified 11 Nematostella Shaker genes with a distinct "silent" or "regulatory" phenotype; these encode subunits that function only in heteromeric channels and serve to further diversify Nematostella Shaker channel gating properties. Subunits with the regulatory phenotype have not previously been found in the Shaker subfamily, but have evolved independently in the Shab (Kv2) family in vertebrates and the Shal family in a cnidarian. Phylogenetic analysis indicates that regulatory subunits were present in ancestral cnidarians, but have continued to diversity at a high rate after the split between anthozoans and hydrozoans. Comparison of Shaker family gene complements from diverse metazoan species reveals frequent, large scale duplication has produced highly unique sets of Shaker channels in the major metazoan lineages.

Indexed as

Gene Expression RegulationAnimalsCnidariaIn Situ HybridizationPhylogenyShaker Superfamily of Potassium ChannelsShaker Superfamily of Potassium Channels

Identifiers

PMID23251506
PMCPMC3519636
OpenAlexW1984704872

What OpenQuestion holds

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LicenceCC BY
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.