Evidence map›Paper›PMID 38517752›Full record

ArticleeLife2024

Structural mechanisms for VMAT2 inhibition by tetrabenazine.

Michael P Dalton, Mary Hongying Cheng, Ivet Bahar, Jonathan A Coleman

Open access · goldAbstract read
In one paragraph

Article in eLife, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

21 citing papers in PubMed, 12 citations in OpenAlex.

  1. Antidepressant-Like Effects ofPharmaceuticals (Basel, Switzerland) · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. VMAT structures reveal exciting targets for drug development.Trends in pharmacological sciences · 2024
    Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Michael P DaltonDepartment of Structural Biology, University of Pittsburgh, Pittsburgh, United States.ORCID https://orcid.org/0000-0001-5296-5099
Mary Hongying ChengLaufer Center for Physical and Quantitative Biology, and Department of Biochemistry and Cell Biology, School of Medicine, Stony Brook University, Stony Brook, United States.ORCID https://orcid.org/0000-0001-5833-8221
Ivet BaharLaufer Center for Physical and Quantitative Biology, and Department of Biochemistry and Cell Biology, School of Medicine, Stony Brook University, Stony Brook, United States.
Jonathan A ColemanDepartment of Structural Biology, University of Pittsburgh, Pittsburgh, United States.ORCID https://orcid.org/0000-0003-0001-6195
University of Pittsburgh · US

Funding

Pacific Northwest Center for Cryo-EM - Screening supplementU24GM129547 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI EVANS, JAMES E, GOUAUX, JAMES E · 2018 to 2023
$54.8M
Toward a Deeper Understanding of Allostery and Allotargeting by Computational ApproachesR01GM139297 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Ivet Bahar · 2021 to 2026
$2.8M
Cryo-electron microscopeS10OD025009 · OD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F. · 2018 to 2018
$2.0M
Deciphering the Molecular Mechanisms of Neurotransmitter TransportR01NS134558 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Jonathan Coleman · 2024 to 2026
$1.3M
Direct electron detecting (DED) cameraS10OD019995 · OD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONWAY, JAMES F. · 2015 to 2015
$548k
NIGMS NIH HHS 1R01GM139297NIGMS NIH HHS R01 GM139297NIGMS NIH HHS U24 GM129547NIH HHS S10 OD019995NIH HHS S10 OD025009NINDS NIH HHS 1R01NS134558NINDS NIH HHS R01 NS134558
6 · The paper itself

Abstract

The vesicular monoamine transporter 2 (VMAT2) is a proton-dependent antiporter responsible for loading monoamine neurotransmitters into synaptic vesicles. Dysregulation of VMAT2 can lead to several neuropsychiatric disorders including Parkinson's disease and schizophrenia. Furthermore, drugs such as amphetamine and MDMA are known to act on VMAT2, exemplifying its role in the mechanisms of actions for drugs of abuse. Despite VMAT2's importance, there remains a critical lack of mechanistic understanding, largely driven by a lack of structural information. Here, we report a 3.1 Å resolution cryo-electron microscopy (cryo-EM) structure of VMAT2 complexed with tetrabenazine (TBZ), a non-competitive inhibitor used in the treatment of Huntington's chorea. We find TBZ interacts with residues in a central binding site, locking VMAT2 in an occluded conformation and providing a mechanistic basis for non-competitive inhibition. We further identify residues critical for cytosolic and lumenal gating, including a cluster of hydrophobic residues which are involved in a lumenal gating strategy. Our structure also highlights three distinct polar networks that may determine VMAT2 conformational dynamics and play a role in proton transduction. The structure elucidates mechanisms of VMAT2 inhibition and transport, providing insights into VMAT2 architecture, function, and the design of small-molecule therapeutics.

Indexed as

Huntington DiseaseTetrabenazineCryoelectron MicroscopyHumansProtonsVesicular Monoamine Transport ProteinsProtonsTetrabenazineVesicular Monoamine Transport Proteinsbiochemistrychemical biologymembrane transportneurotransmittersnonesmall-molecule inhibitors

Identifiers

PMID38517752
PMCPMC10959523
OpenAlexW4387693883

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.