4LZ7

Crystal structures of GLuR2 ligand-binding-domain in complex with glutamate and positive allosteric modulators


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Discovery and Characterization of a Novel Dihydroisoxazole Class of alpha-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) Receptor Potentiators.

Patel, N.C.Schwarz, J.Hou, X.J.Hoover, D.J.Xie, L.Fliri, A.J.Gallaschun, R.J.Lazzaro, J.T.Bryce, D.K.Hoffmann, W.E.Hanks, A.N.McGinnis, D.Marr, E.S.Gazard, J.L.Hajos, M.Scialis, R.J.Hurst, R.S.Shaffer, C.L.Pandit, J.O'Donnell, C.J.

(2013) J Med Chem 56: 9180-9191

  • DOI: 10.1021/jm401274b
  • Primary Citation of Related Structures:  
    4LZ5, 4LZ7, 4LZ8

  • PubMed Abstract: 
  • Positive allosteric modulators ("potentiators") of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors (AMPAR) enhance excitatory neurotransmission and may improve the cognitive deficits associated with various neurological disorders. The dihydroisoxazole (DHI) series of AMPAR potentiators described herein originated from the identification of 7 by a high-throughput functional activity screen using mouse embryonic stem (mES) cell-derived neuronal precursors ...

    Positive allosteric modulators ("potentiators") of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors (AMPAR) enhance excitatory neurotransmission and may improve the cognitive deficits associated with various neurological disorders. The dihydroisoxazole (DHI) series of AMPAR potentiators described herein originated from the identification of 7 by a high-throughput functional activity screen using mouse embryonic stem (mES) cell-derived neuronal precursors. Subsequent structure-based drug design using X-ray crystal structures of the ligand-binding domain of human GluA2 led to the discovery of both PF-04725379 (11), which in tritiated form became a novel ligand for characterizing the binding affinities of subsequent AMPAR potentiators in rat brain homogenate, and PF-04701475 (8a), a prototype used to explore AMPAR-mediated pharmacology in vivo. Lead series optimization provided 16a, a functionally potent compound lacking the potentially bioactivatable aniline within 8a, but retaining desirable in vitro ADME properties.


    Organizational Affiliation

    Pfizer Worldwide Research and Development, Groton Laboratories , 445 Eastern Point Road, Groton, Connecticut 06340, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glutamate receptor 2A, B, C275Rattus norvegicusMutation(s): 3 
Gene Names: Gria2Glur2
UniProt
Find proteins for P19491 (Rattus norvegicus)
Explore P19491 
Go to UniProtKB:  P19491
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.38α = 90
b = 164.344β = 90
c = 47.402γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2013-07-31 
  • Released Date: 2013-12-04 
  • Deposition Author(s): Pandit, J.

Revision History  (Full details and data files)

  • Version 1.0: 2013-12-04
    Type: Initial release
  • Version 1.1: 2013-12-11
    Changes: Database references
  • Version 1.2: 2017-07-26
    Changes: Refinement description, Source and taxonomy