4U1O

GluA2flip sLBD complexed with kainate and (R,R)-2b crystal form C


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure and Dynamics of AMPA Receptor GluA2 in Resting, Pre-Open, and Desensitized States.

Durr, K.L.Chen, L.Stein, R.A.De Zorzi, R.Folea, I.M.Walz, T.Mchaourab, H.S.Gouaux, E.

(2014) Cell 158: 778-792

  • DOI: 10.1016/j.cell.2014.07.023
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Ionotropic glutamate receptors (iGluRs) mediate the majority of fast excitatory signaling in the nervous system. Despite the profound importance of iGluRs to neurotransmission, little is known about the structures and dynamics of intact receptors in ...

    Ionotropic glutamate receptors (iGluRs) mediate the majority of fast excitatory signaling in the nervous system. Despite the profound importance of iGluRs to neurotransmission, little is known about the structures and dynamics of intact receptors in distinct functional states. Here, we elucidate the structures of the intact GluA2 AMPA receptor in an apo resting/closed state, in an activated/pre-open state bound with partial agonists and a positive allosteric modulator, and in a desensitized/closed state in complex with fluorowilliardiine. To probe the conformational properties of these states, we carried out double electron-electron resonance experiments on cysteine mutants and cryoelectron microscopy studies. We show how agonist binding modulates the conformation of the ligand-binding domain "layer" of the intact receptors and how, upon desensitization, the receptor undergoes large conformational rearrangements of the amino-terminal and ligand-binding domains. We define mechanistic principles by which to understand antagonism, activation, and desensitization in AMPA iGluRs.


    Organizational Affiliation

    Vollum Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA; Howard Hughes Medical Institute, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239, USA. Electronic address: gouauxe@ohsu.edu.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Glutamate receptor 2
A
263Rattus norvegicusMutation(s): 1 
Gene Names: Gria2Glur2
Find proteins for P19491 (Rattus norvegicus)
Go to UniProtKB:  P19491
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FWF
Query on FWF

Download CCD File 
A
N,N'-[biphenyl-4,4'-diyldi(2R)propane-2,1-diyl]dipropane-2-sulfonamide
C24 H36 N2 O4 S2
HGLQSTHVRKGLQP-PMACEKPBSA-N
 Ligand Interaction
KAI
Query on KAI

Download CCD File 
A
3-(CARBOXYMETHYL)-4-ISOPROPENYLPROLINE
C10 H15 N O4
VLSMHEGGTFMBBZ-OOZYFLPDSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
KAIEC50:  380000   nM  BindingDB
KAIEC50:  10570   nM  BindingDB
KAIKi:  6300   nM  BindingDB
KAIKi:  3570   nM  BindingDB
KAIKi:  12200   nM  BindingDB
KAIKi:  12221   nM  BindingDB
KAIEC50:  60000   nM  BindingDB
KAIKi:  7449   nM  BindingDB
KAIKi:  7450   nM  BindingDB
KAIKi:  7500   nM  BindingDB
KAIEC50:  73000   nM  BindingDB
KAIKi:  3690   nM  BindingDB
KAIEC50:  47000   nM  BindingDB
KAIKi:  1710   nM  BindingDB
KAIKi:  1714   nM  BindingDB
KAIEC50:  7510   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.31α = 90
b = 89.68β = 90
c = 48.66γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2014-07-15 
  • Released Date: 2014-08-20 
  • Deposition Author(s): Chen, L., Gouaux, E.

Revision History 

  • Version 1.0: 2014-08-20
    Type: Initial release
  • Version 1.1: 2014-10-01
    Changes: Database references