5H8F

Structure of the apo human GluN1/GluN2A LBD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Positive Allosteric Modulators of GluN2A-Containing NMDARs with Distinct Modes of Action and Impacts on Circuit Function.

Hackos, D.H.Lupardus, P.J.Grand, T.Chen, Y.Wang, T.M.Reynen, P.Gustafson, A.Wallweber, H.J.Volgraf, M.Sellers, B.D.Schwarz, J.B.Paoletti, P.Sheng, M.Zhou, Q.Hanson, J.E.

(2016) Neuron 89: 983-999

  • DOI: https://doi.org/10.1016/j.neuron.2016.01.016
  • Primary Citation of Related Structures:  
    5H8F, 5H8H, 5H8N, 5H8Q, 5H8S, 5KCJ

  • PubMed Abstract: 

    To enhance physiological function of NMDA receptors (NMDARs), we identified positive allosteric modulators (PAMs) of NMDARs with selectivity for GluN2A subunit-containing receptors. X-ray crystallography revealed a binding site at the GluN1-GluN2A dimer interface of the extracellular ligand-binding domains (LBDs). Despite the similarity between the LBDs of NMDARs and AMPA receptors (AMPARs), GluN2A PAMs with good selectivity against AMPARs were identified. Potentiation was observed with recombinant triheteromeric GluN1/GluN2A/GluN2B NMDARs and with synaptically activated NMDARs in brain slices from wild-type (WT), but not GluN2A knockout (KO), mice. Individual GluN2A PAMs exhibited variable degrees of glutamate (Glu) dependence, impact on NMDAR Glu EC50, and slowing of channel deactivation. These distinct PAMs also exhibited differential impacts during synaptic plasticity induction. The identification of a new NMDAR modulatory site and characterization of GluN2A-selective PAMs provide powerful molecular tools to dissect NMDAR function and demonstrate the feasibility of a therapeutically desirable type of NMDAR enhancement.


  • Organizational Affiliation

    Department of Neuroscience, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutamate receptor ionotropic, NMDA 2A285Homo sapiensMutation(s): 0 
Gene Names: GRIN2ANMDAR2A
UniProt & NIH Common Fund Data Resources
Find proteins for Q12879 (Homo sapiens)
Explore Q12879 
Go to UniProtKB:  Q12879
PHAROS:  Q12879
GTEx:  ENSG00000183454 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ12879
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Glutamate receptor ionotropic, NMDA 1293Homo sapiensMutation(s): 0 
Gene Names: GRIN1NMDAR1
UniProt & NIH Common Fund Data Resources
Find proteins for Q05586 (Homo sapiens)
Explore Q05586 
Go to UniProtKB:  Q05586
PHAROS:  Q05586
GTEx:  ENSG00000176884 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ05586
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GLU
Query on GLU

Download Ideal Coordinates CCD File 
D [auth A]GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-VKHMYHEASA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth A]
E [auth B]
F [auth B]
G [auth B]
H [auth B]
C [auth A],
E [auth B],
F [auth B],
G [auth B],
H [auth B],
I [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
GLY
Query on GLY

Download Ideal Coordinates CCD File 
J [auth B]GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.81 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.268α = 90
b = 89.193β = 90
c = 124.739γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-02-24
    Type: Initial release
  • Version 1.1: 2018-04-18
    Changes: Data collection, Database references, Derived calculations
  • Version 1.2: 2023-09-27
    Changes: Data collection, Database references, Refinement description