3SAJ

Crystal Structure of glutamate receptor GluA1 Amino Terminal Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the glutamate receptor GluA1 N-terminal domain.

Yao, G.Zong, Y.Gu, S.Zhou, J.Xu, H.Mathews, I.I.Jin, R.

(2011) Biochem.J. 438: 255-263

  • DOI: 10.1042/BJ20110801

  • PubMed Abstract: 
  • The AMPA (α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid) subfamily of iGluRs (ionotropic glutamate receptors) is essential for fast excitatory neurotransmission in the central nervous system. The malfunction of AMPARs (AMPA receptors) has been ...

    The AMPA (α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid) subfamily of iGluRs (ionotropic glutamate receptors) is essential for fast excitatory neurotransmission in the central nervous system. The malfunction of AMPARs (AMPA receptors) has been implicated in many neurological diseases, including Alzheimer's disease, Parkinson's disease and amyotrophic lateral sclerosis. The active channels of AMPARs and other iGluR subfamilies are tetramers formed exclusively by assembly of subunits within the same subfamily. It has been proposed that the assembly process is controlled mainly by the extracellular ATD (N-terminal domain) of iGluR. In addition, ATD has also been implicated in synaptogenesis, iGluR trafficking and trans-synaptic signalling, through unknown mechanisms. We report in the present study a 2.5 Å (1 Å=0.1 nm) resolution crystal structure of the ATD of GluA1. Comparative analyses of the structure of GluA1-ATD and other subunits sheds light on our understanding of how ATD drives subfamily-specific assembly of AMPARs. In addition, analysis of the crystal lattice of GluA1-ATD suggests a novel mechanism by which the ATD might participate in inter-tetramer AMPAR clustering, as well as in trans-synaptic protein-protein interactions.


    Organizational Affiliation

    Fujian Provincial Key Laboratory of Neurodegenerative Disease and Aging Research, College of Medicine, Xiamen University, Fujian, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutamate receptor 1
A, B, C, D
384Rattus norvegicusMutation(s): 0 
Gene Names: Gria1 (Glur1)
Find proteins for P19490 (Rattus norvegicus)
Go to UniProtKB:  P19490
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MAN
Query on MAN

Download SDF File 
Download CCD File 
C
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
BMA
Query on BMA

Download SDF File 
Download CCD File 
A, B, C, D
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 92.586α = 90.00
b = 94.421β = 90.00
c = 186.367γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
MOLREPphasing
SCALAdata scaling
MAR345dtbdata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-22
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-08-24
    Type: Database references
  • Version 1.3: 2014-11-12
    Type: Structure summary