Evidence map›Paper›PMID 23303953›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2013

Postsynaptic ERG potassium channels limit muscle excitability to allow distinct egg-laying behavior states in Caenorhabditis elegans.

Kevin M Collins, Michael R Koelle

Abstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
–field-weighted citation impact
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

40 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Rho signaling promotes cell excitability and synaptic transmission.bioRxiv : the preprint server for biology · 2025
    Article
  5. Article
  6. TheThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Multiple Subthreshold GPCR Signals Combined by the G-Proteins GαThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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
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

2 authors.

Kevin M CollinsDepartment of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8024, USA.
Michael R Koelle

Funding

Yale Liver CenterP30DK034989 · NIDDK · YALE UNIVERSITY · PI WAJAHAT Zafar MEHAL · 1986 to 2026
$31.1M
G PROTEIN SIGNALING IN THE C ELEGANS NERVOUS SYSTEMR01NS036918 · NINDS · YALE UNIVERSITY · PI KOELLE, MICHAEL R · 1998 to 2019
$8.0M
Heterotrimeric G-protein regulation of neurotransmission in C. elegansF32GM079813 · NIGMS · YALE UNIVERSITY · PI COLLINS, KEVIN MICHAEL · 2007 to 2009
$142k
NIDDK NIH HHS DK34989NIDDK NIH HHS P30 DK034989NIGMS NIH HHS F32 GM079813NIGMS NIH HHS GM079813NINDS NIH HHS NS036918NINDS NIH HHS R01 NS036918
6 · The paper itself

Abstract

Caenorhabditis elegans regulates egg laying by alternating between an inactive phase and a serotonin-triggered active phase. We found that the conserved ERG [ether-a-go-go (EAG) related gene] potassium channel UNC-103 enables this two-state behavior by limiting excitability of the egg-laying muscles. Using both high-speed video recording and calcium imaging of egg-laying muscles in behaving animals, we found that the muscles appear to be excited at a particular phase of each locomotor body bend. During the inactive phase, this rhythmic excitation infrequently evokes calcium transients or contraction of the egg-laying muscles. During the serotonin-triggered active phase, however, these muscles are more excitable and each body bend is accompanied by a calcium transient that drives twitching or full contraction of the egg-laying muscles. We found that ERG-null mutants lay eggs too frequently, and that ERG function is necessary and sufficient in the egg-laying muscles to limit egg laying. ERG K(+) channels localize to postsynaptic sites in the egg-laying muscle, and mutants lacking ERG have more frequent calcium transients and contractions of the egg-laying muscles even during the inactive phase. Thus ERG channels set postsynaptic excitability at a threshold so that further adjustments of excitability by serotonin generate two distinct behavioral states.

Indexed as

3' Untranslated RegionsAnimalsBehavior, AnimalCaenorhabditis elegansCalcium SignalingDNAEther-A-Go-Go Potassium ChannelsFemaleMicroscopy, ConfocalMuscle ContractionMusclesOvipositionPDZ DomainsPolymerase Chain ReactionSerotoninSynapses3' Untranslated RegionsDNAEther-A-Go-Go Potassium ChannelsSerotonin

Identifiers

PMID23303953
PMCPMC3542984

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.