4U4G

Structure of GluA2* in complex with competitive antagonist ZK 200775


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.49 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structure of an agonist-bound ionotropic glutamate receptor.

Yelshanskaya, M.V.Li, M.Sobolevsky, A.I.

(2014) Science 345: 1070-1074

  • DOI: 10.1126/science.1256508
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Ionotropic glutamate receptors (iGluRs) mediate most excitatory neurotransmission in the central nervous system and function by opening their ion channel in response to binding of agonist glutamate. Here, we report a structure of a homotetrameric rat ...

    Ionotropic glutamate receptors (iGluRs) mediate most excitatory neurotransmission in the central nervous system and function by opening their ion channel in response to binding of agonist glutamate. Here, we report a structure of a homotetrameric rat GluA2 receptor in complex with partial agonist (S)-5-nitrowillardiine. Comparison of this structure with the closed-state structure in complex with competitive antagonist ZK 200775 suggests conformational changes that occur during iGluR gating. Guided by the structures, we engineered disulfide cross-links to probe domain interactions that are important for iGluR gating events. The combination of structural information, kinetic modeling, and biochemical and electrophysiological experiments provides insight into the mechanism of iGluR gating.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biophysics, Columbia University, 650 West 168th Street, New York, NY 10032, USA. as4005@columbia.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutamate receptor 2
A, B, C, D
822Rattus norvegicusMutation(s): 0 
Gene Names: Gria2Glur2
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Other Ion Channels
Protein: 
GluA2 Glutamate receptor (AMPA-subtype) with competitive antagonist ZK 200775
Find proteins for P19491 (Rattus norvegicus)
Go to UniProtKB:  P19491
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZK1
Query on ZK1

Download CCD File 
A, B, C, D
{[7-morpholin-4-yl-2,3-dioxo-6-(trifluoromethyl)-3,4-dihydroquinoxalin-1(2H)-yl]methyl}phosphonic acid
C14 H15 F3 N3 O6 P
WZMQMKNCWDCCMT-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
BMA
Query on BMA

Download CCD File 
A, B, C, D
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 4.49 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.218 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.999α = 90
b = 310.36β = 94.82
c = 109.502γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
HKL-2000data reduction
HKL-2000data scaling

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 StatesNS083660

Revision History 

  • Version 1.0: 2014-10-22
    Type: Initial release
  • Version 1.1: 2015-02-11
    Changes: Advisory
  • Version 1.2: 2016-12-21
    Changes: Structure summary
  • Version 1.3: 2017-09-13
    Changes: Author supporting evidence
  • Version 1.4: 2017-11-22
    Changes: Refinement description
  • Version 1.5: 2019-12-18
    Changes: Author supporting evidence