Evidence map›Paper›PMID 23152612›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

IRK-1 potassium channels mediate peptidergic inhibition of Caenorhabditis elegans serotonin neurons via a G(o) signaling pathway.

Lesley Emtage, Sonya Aziz-Zaman, Olivia Padovan-Merhar, H Robert Horvitz, Christopher Fang-Yen, Niels Ringstad

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
0.4field-weighted citation impact, top 48% 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

35 citing papers in PubMed, 52 citations in OpenAlex.

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  4. Food sensing controlsScience advances · 2025
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  10. A single neuron inbioRxiv : the preprint server for biology · 2023
    Article
  11. Article
  12. Evolution of inwardly rectifying potassium channels and their gene expression in zebrafish embryos.Developmental dynamics : an official publication of the American Association of Anatomists · 2022
    Article
  13. Reduced CaFrontiers in neuroscience · 2022
    Article
  14. Article
  15. Neural and behavioral control inProceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  16. Article
  17. Cellular Expression and Functional Roles of All 26 Neurotransmitter GPCRs in theThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  18. Article
  19. Article
  20. CamicroPublication biology · 2019
    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 3 institutions in 1 country.

Lesley EmtageSkirball Institute of Biomolecular Medicine, Molecular Neurobiology Program, Department of Cell Biology, New York University Langone Medical Center, New York, New York 10016, USA.
Sonya Aziz-Zaman
Olivia Padovan-Merhar
H Robert Horvitz
Christopher Fang-Yen
Niels Ringstad
NYU Langone Health · USUniversity of Pennsylvania · USMassachusetts Institute of Technology · US

Funding

Genetic Analysis of Nematode Egg Laying and Co-regulated Behavioral SystemsR01GM024663 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI HORVITZ, H ROBERT · 1985 to 2025
$10.1M
Mechanisms of neuropeptide signaling in the modulation of a serotonergic synapse.R01GM098320 · NIGMS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI RINGSTAD, NIELS · 2011 to 2017
$2.0M
NIGMS NIH HHS R01 GM024663NIGMS NIH HHS R01-GM024663NIGMS NIH HHS R01 GM098320NIGMS NIH HHS R01-GM098320
6 · The paper itself

Abstract

To identify molecular mechanisms that function in G-protein signaling, we have performed molecular genetic studies of a simple behavior of the nematode Caenorhabditis elegans, egg laying, which is driven by a pair of serotonergic neurons, the hermaphrodite-specific neurons (HSNs). The activity of the HSNs is regulated by the G(o)-coupled receptor EGL-6, which mediates inhibition of the HSNs by neuropeptides. We report here that this inhibition requires one of three inwardly rectifying K(+) channels encoded by the C. elegans genome: IRK-1. Using ChannelRhodopsin-2-mediated stimulation of HSNs, we observed roles for egl-6 and irk-1 in regulating the excitability of HSNs. Although irk-1 is required for inhibition of HSNs by EGL-6 signaling, we found that other G(o) signaling pathways that inhibit HSNs involve irk-1 little or not at all. These findings suggest that the neuropeptide receptor EGL-6 regulates the potassium channel IRK-1 via a dedicated pool of G(o) not involved in other G(o)-mediated signaling. We conclude that G-protein-coupled receptors that signal through the same G-protein in the same cell might activate distinct effectors and that specific coupling of a G-protein-coupled receptor to its effectors can be determined by factors other than its associated G-proteins.

Indexed as

AllelesAmino Acid SequenceAnimalsAnimals, Genetically ModifiedBehavior, AnimalCaenorhabditis elegansGenomeGTP-Binding Protein alpha Subunits, Gi-GoIon Channel GatingMolecular Sequence DataNeuropeptidesOocytesPolymerase Chain ReactionPotassium Channels, Inwardly RectifyingSerotonergic NeuronsSexual Behavior, AnimalGTP-Binding Protein alpha Subunits, Gi-GoNeuropeptidesPotassium Channels, Inwardly Rectifying

Identifiers

PMID23152612
PMCPMC3544400
OpenAlexW2038870041

What OpenQuestion holds

Textmetadata
LicenceTDM
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.