Evidence map›Paper›PMID 26937633›Full record

ReviewWormBook : the online review of C. elegans biology2018

Neurotransmitter signaling through heterotrimeric G proteins: insights from studies in C. elegans.

Michael R Koelle

Open access · diamondAbstract readReview
In one paragraph

Review in WormBook : the online review of C. elegans biology, 2018. 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
2.1field-weighted citation impact, top 15% 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, 59 citations in OpenAlex.

  1. Article
  2. Review
  3. The dopaminergic system ofRoyal Society open science · 2025
    Review
  4. Article
  5. Article
  6. Decoding GNAO1 mutations usingFrontiers in cellular neuroscience · 2025
    Review
  7. Article
  8. Article
  9. Multiple Subthreshold GPCR Signals Combined by the G-Proteins GαThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Reduced CaFrontiers in neuroscience · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. EGL-4 promotes turning behavior ofmicroPublication biology · 2021
    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.

Michael R KoelleDepartment of Molecular Biophysics & Biochemistry, Yale University, New Haven CT 06520 USA.
Yale University · US

Funding

G PROTEIN SIGNALING IN THE C ELEGANS NERVOUS SYSTEMR01NS036918 · NINDS · YALE UNIVERSITY · PI KOELLE, MICHAEL R · 1998 to 2019
$8.0M
Neuromodulator signaling and activity in the C. elegans egg-laying circuit.R01NS086932 · NINDS · YALE UNIVERSITY · PI Kevin Michael Collins, MICHAEL R KOELLE · 2014 to 2026
$5.2M
NINDS NIH HHS R01 NS036918NINDS NIH HHS R01 NS086932
6 · The paper itself

Abstract

Neurotransmitters signal via G protein coupled receptors (GPCRs) to modulate activity of neurons and muscles. C. elegans has ∼150 G protein coupled neuropeptide receptor homologs and 28 additional GPCRs for small-molecule neurotransmitters. Genetic studies in C. elegans demonstrate that neurotransmitters diffuse far from their release sites to activate GPCRs on distant cells. Individual receptor types are expressed on limited numbers of cells and thus can provide very specific regulation of an individual neural circuit and behavior. G protein coupled neurotransmitter receptors signal principally via the three types of heterotrimeric G proteins defined by the G alpha subunits Gαo, Gαq, and Gαs. Each of these G alpha proteins is found in all neurons plus some muscles. Gαo and Gαq signaling inhibit and activate neurotransmitter release, respectively. Gαs signaling, like Gαq signaling, promotes neurotransmitter release. Many details of the signaling mechanisms downstream of Gαq and Gαs have been delineated and are consistent with those of their mammalian orthologs. The details of the signaling mechanism downstream of Gαo remain a mystery. Forward genetic screens in C. elegans have identified new molecular components of neural G protein signaling mechanisms, including Regulators of G protein Signaling (RGS proteins) that inhibit signaling, a new Gαq effector (the Trio RhoGEF domain), and the RIC-8 protein that is required for neuronal Gα signaling. A model is presented in which G proteins sum up the variety of neuromodulator signals that impinge on a neuron to calculate its appropriate output level.

Indexed as

Signal TransductionAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsHeterotrimeric GTP-Binding ProteinsNeurotransmitter AgentsCaenorhabditis elegans ProteinsHeterotrimeric GTP-Binding ProteinsNeurotransmitter Agents

Identifiers

PMID26937633
PMCPMC5010795
OpenAlexW2329055726

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.