Evidence map›Paper›PMID 39602131›Full record

ArticleThe Journal of physiology2024

The gating properties of Drosophila NMJ glutamate receptors and their dependence on Neto.

Tae Hee Han, Rosario Vicidomini, Cathy Isaura Ramos, Mark L Mayer, Mihaela Serpe

Abstract read
In one paragraph

Article in The Journal of physiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Glutamate receptor composition atbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Article
  4. Nonionic signaling rapidly remodels postsynaptic DLG to induce retrograde homeostatic plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Tae Hee HanSection on Cellular Communication, Eunice Kennedy Shiver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA.ORCID 0000-0001-6223-9437
Rosario VicidominiSection on Cellular Communication, Eunice Kennedy Shiver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA.ORCID 0000-0002-5082-3238
Cathy Isaura RamosSection on Cellular Communication, Eunice Kennedy Shiver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA.ORCID 0000-0001-8378-5277
Mark L MayerNational Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA.
Mihaela SerpeSection on Cellular Communication, Eunice Kennedy Shiver National Institute of Child Health and Human Development, NIH, Bethesda, MD, USA.ORCID 0000-0002-9205-8589

Funding

Mechanisms of synapse developmentZIAHD008914 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SERPE, MIHAELA · 2011 to 2025
$16.4M
Modulation of TGF-beta signalingZIAHD008869 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SERPE, MIHAELA · 2009 to 2025
$8.0M
Intramural NIH HHS ZIA HD008869Intramural NIH HHS ZIA HD008914
6 · The paper itself

Abstract

The Drosophila neuromuscular junction (NMJ) is a powerful genetic system that has revealed numerous conserved mechanisms for synapse development and homeostasis. The fly NMJ uses glutamate as the excitatory neurotransmitter and relies on kainate-type glutamate receptors and their auxiliary protein Neto for synapse assembly and function. However, despite decades of study, the reconstitution of NMJ glutamate receptors using heterologous systems has been achieved only recently, and there are no reports on the gating properties for the recombinant receptors. Here, using outside-out, patch clamp recordings and fast ligand application, we examine for the first time the biophysical properties of native type-A and type-B NMJ receptors in complexes with either Neto-α or Neto-β and compare them with recombinant receptors expressed in HEK293T cells. We found that type-A and type-B receptors have strikingly different gating properties that are further modulated by Neto-α and Neto-β. We captured single-channel events and revealed major differences between type-A and type-B receptors and also between Neto splice variants. Surprisingly, we found that deactivation is extremely fast and that the decay of synaptic currents resembles the rate of ionotropic glutamate receptor (iGluR) desensitization. The functional analyses of recombinant iGluRs that we report here should greatly facilitate the interpretation of compound in vivo phenotypes of mutant animals. KEY POINTS: We report the reconstitution of Drosophila neuromuscular junction ionotropic glutamate receptors (iGluRs) with Neto splice forms. Using outside-out patches and fast ligand application, we examine the deactivation and desensitization of the four iGluR/Neto complexes found in vivo. Expression of functional channels is absolutely dependent on Neto. Single-channel recordings revealed different lifetimes for different receptor complexes. The decay of synaptic currents is controlled by desensitization.

Indexed as

Drosophila ProteinsNeuromuscular JunctionReceptors, GlutamateAnimalsDrosophilaDrosophila melanogasterHEK293 CellsHumansIon Channel GatingMembrane ProteinsDrosophila ProteinsMembrane ProteinsNeto protein, DrosophilaReceptors, GlutamateDrosophila iGluRsgating propertiesNetoneuromuscular junction

Identifiers

PMID39602131
PMCPMC11649521

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.