Evidence map›Paper›PMID 31804469›Full record

ArticleNature communications2019

Conformational pathway provides unique sensitivity to a synaptic mGluR.

Chris H Habrian, Joshua Levitz, Vojtech Vyklicky, Zhu Fu, Adam Hoagland, Isabelle McCort-Tranchepain, Francine Acher, Ehud Y Isacoff

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 71 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Overexpression of mGluMolecular neurobiology · 2025
    Article
  9. Article
  10. Article
  11. Profiling the Impact of mGluACS chemical neuroscience · 2025
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Exploring the activation mechanism of metabotropic glutamate receptor 2.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  18. Review
  19. Article
  20. 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

8 authors at 4 institutions in 2 countries.

Chris H HabrianBiophysics Graduate Group, University of California, Berkeley, CA, 94720, USA.
Joshua LevitzDepartment of Molecular and Cell Biology, University of California, Berkeley, CA, 94720, USA.
Vojtech VyklickyDepartment of Molecular and Cell Biology, University of California, Berkeley, CA, 94720, USA.ORCID http://orcid.org/0000-0002-7763-850X
Zhu FuDepartment of Molecular and Cell Biology, University of California, Berkeley, CA, 94720, USA.
Adam HoaglandDepartment of Molecular and Cell Biology, University of California, Berkeley, CA, 94720, USA.
Isabelle McCort-TranchepainParis Descartes University, 75006, Paris, France.
Francine AcherParis Descartes University, 75006, Paris, France.ORCID http://orcid.org/0000-0002-5413-4181
Ehud Y IsacoffBiophysics Graduate Group, University of California, Berkeley, CA, 94720, USA. ehud@berkeley.edu.
University of California, Berkeley · USDélégation Paris 5 · FRCornell University · USLawrence Berkeley National Laboratory · US

Funding

NDC for the Optical Control of Biological FunctionPN2EY018241 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI ISACOFF, EHUD · 2006 to 2015
$37.5M
MOLECULAR BIOPHYSICS TRAINING GRANTT32GM008295 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI HURLEY, JAMES H, WEMMER, DAVID E · 1989 to 2022
$8.1M
Conformational mechanisms of mGluR gating and regulationR01NS119826 · NINDS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ISACOFF, EHUD · 2021 to 2024
$1.6M
Voltage Gating MechanismsR01GM117051 · NIGMS · UNIVERSITY OF CALIFORNIA BERKELEY · PI ISACOFF, EHUD · 2016 to 2019
$1.3M
NEI NIH HHS PN2 EY018241NIGMS NIH HHS R01 GM117051NIGMS NIH HHS T32 GM008295NINDS NIH HHS R01 NS119826
6 · The paper itself

Abstract

Metabotropic glutamate receptors (mGluRs) are dimeric G-protein-coupled receptors that operate at synapses. Macroscopic and single molecule FRET to monitor structural rearrangements in the ligand binding domain (LBD) of the mGluR7/7 homodimer revealed it to have an apparent affinity ~4000-fold lower than other mGluRs and a maximal activation of only ~10%, seemingly too low for activation at synapses. However, mGluR7 heterodimerizes, and we find it to associate with mGluR2 in the hippocampus. Strikingly, the mGluR2/7 heterodimer has high affinity and efficacy. mGluR2/7 shows cooperativity in which an unliganded subunit greatly enhances activation by agonist bound to its heteromeric partner, and a unique conformational pathway to activation, in which mGluR2/7 partially activates in the Apo state, even when its LBDs are held open by antagonist. High sensitivity and an unusually broad dynamic range should enable mGluR2/7 to respond to both glutamate transients from nearby release and spillover from distant synapses.

Indexed as

Protein ConformationProtein MultimerizationAnimalsGlutamic AcidHEK293 CellsHumansMiceMicroscopy, FluorescencePatch-Clamp TechniquesRats, Sprague-DawleyReceptors, Metabotropic GlutamateSynapsesGlutamic Acidmetabotropic glutamate receptor 2metabotropic glutamate receptor 7Receptors, Metabotropic Glutamate

Identifiers

PMID31804469
PMCPMC6895203
OpenAlexW2993482567

What OpenQuestion holds

Textmetadata
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.