4TLM

Crystal structure of GluN1/GluN2B NMDA receptor, structure 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.77 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.253 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

NMDA receptor structures reveal subunit arrangement and pore architecture.

Lee, C.H.Lu, W.Michel, J.C.Goehring, A.Du, J.Song, X.Gouaux, E.

(2014) Nature 511: 191-197

  • DOI: 10.1038/nature13548
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • N-methyl-d-aspartate (NMDA) receptors are Hebbian-like coincidence detectors, requiring binding of glycine and glutamate in combination with the relief of voltage-dependent magnesium block to open an ion conductive pore across the membrane bilayer. D ...

    N-methyl-d-aspartate (NMDA) receptors are Hebbian-like coincidence detectors, requiring binding of glycine and glutamate in combination with the relief of voltage-dependent magnesium block to open an ion conductive pore across the membrane bilayer. Despite the importance of the NMDA receptor in the development and function of the brain, a molecular structure of an intact receptor has remained elusive. Here we present X-ray crystal structures of the Xenopus laevis GluN1-GluN2B NMDA receptor with the allosteric inhibitor, Ro25-6981, partial agonists and the ion channel blocker, MK-801. Receptor subunits are arranged in a 1-2-1-2 fashion, demonstrating extensive interactions between the amino-terminal and ligand-binding domains. The transmembrane domains harbour a closed-blocked ion channel, a pyramidal central vestibule lined by residues implicated in binding ion channel blockers and magnesium, and a ∼twofold symmetric arrangement of ion channel pore loops. These structures provide new insights into the architecture, allosteric coupling and ion channel function of NMDA receptors.


    Organizational Affiliation

    1] Vollum Institute, Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA [2].




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
receptor subunit GluN1
A, C
823Xenopus laevisMutation(s): 15 
Gene Names: grin1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Other Ion Channels
Protein: 
GluN1a/GluN2B NMDA receptor
Find proteins for A0A1L8F5J9 (Xenopus laevis)
Go to UniProtKB:  A0A1L8F5J9
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
receptor subunit GluN2B
B, D
824Xenopus laevisMutation(s): 11 
Gene Names: grin2b
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Channels: Other Ion Channels
Protein: 
GluN1a/GluN2B NMDA receptor
Find proteins for A7XY94 (Xenopus laevis)
Go to UniProtKB:  A7XY94
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
QEM
Query on QEM

Download SDF File 
Download CCD File 
A, C
4-[(1R,2S)-3-(4-benzylpiperidin-1-yl)-1-hydroxy-2-methylpropyl]phenol
C22 H29 N O2
WVZSEUPGUDIELE-HTAPYJJXSA-N
 Ligand Interaction
JEG
Query on JEG

Download SDF File 
Download CCD File 
D
trans-1-aminocyclobutane-1,3-dicarboxylic acid
C6 H9 N O4
GGMYWPBNZXRMME-HSRNZHMGSA-N
 Ligand Interaction
1AC
Query on 1AC

Download SDF File 
Download CCD File 
A
1-AMINOCYCLOPROPANECARBOXYLIC ACID
C4 H7 N O2
PAJPWUMXBYXFCZ-UHFFFAOYSA-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
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
QEMIC50: 6 - 159 nM (87) BINDINGDB
QEMKi: 10 nM (87) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.77 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.253 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 203.490α = 90.00
b = 118.430β = 103.82
c = 226.590γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-02
    Type: Initial release
  • Version 1.1: 2014-07-09
    Type: Database references, Structure summary
  • Version 1.2: 2014-07-16
    Type: Database references
  • Version 1.3: 2014-09-24
    Type: Database references