6V4D

Structure of the rat vesicular glutamate transporter 2 determined by single particle Cryo-EM


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Ion transport and regulation in a synaptic vesicle glutamate transporter.

Li, F.Eriksen, J.Finer-Moore, J.Chang, R.Nguyen, P.Bowen, A.Myasnikov, A.Yu, Z.Bulkley, D.Cheng, Y.Edwards, R.H.Stroud, R.M.

(2020) Science 368: 893-897

  • DOI: 10.1126/science.aba9202
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Synaptic vesicles accumulate neurotransmitters, enabling the quantal release by exocytosis that underlies synaptic transmission. Specific neurotransmitter transporters are responsible for this activity and therefore are essential for brain function. ...

    Synaptic vesicles accumulate neurotransmitters, enabling the quantal release by exocytosis that underlies synaptic transmission. Specific neurotransmitter transporters are responsible for this activity and therefore are essential for brain function. The vesicular glutamate transporters (VGLUTs) concentrate the principal excitatory neurotransmitter glutamate into synaptic vesicles, driven by membrane potential. However, the mechanism by which they do so remains poorly understood owing to a lack of structural information. We report the cryo-electron microscopy structure of rat VGLUT2 at 3.8-angstrom resolution and propose structure-based mechanisms for substrate recognition and allosteric activation by low pH and chloride. A potential permeation pathway for chloride intersects with the glutamate binding site. These results demonstrate how the activity of VGLUTs can be coordinated with large shifts in proton and chloride concentrations during the synaptic vesicle cycle to ensure normal synaptic transmission.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California San Francisco (UCSF) School of Medicine, San Francisco, CA, USA. stroud@msg.ucsf.edu robert.edwards@ucsf.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Vesicular glutamate transporter 2
A
531Rattus norvegicusMutation(s): 0 
Gene Names: Slc17a6DnpiVglut2
Find proteins for Q9JI12 (Rattus norvegicus)
Go to UniProtKB:  Q9JI12
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesR01NS089713
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)United StatesK99MH119591
American Heart AssociationUnited States17POST33660928

Revision History 

  • Version 1.0: 2020-05-20
    Type: Initial release
  • Version 1.1: 2020-06-03
    Changes: Database references