2E4W

Crystal structure of the extracellular region of the group II metabotropic glutamate receptor complexed with 1S,3S-ACPD


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.236 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structures of the extracellular regions of the group II/III metabotropic glutamate receptors

Muto, T.Tsuchiya, D.Morikawa, K.Jingami, H.

(2007) Proc.Natl.Acad.Sci.Usa 104: 3759-3764

  • DOI: 10.1073/pnas.0611577104
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Metabotropic glutamate receptors play major roles in the activation of excitatory synapses in the central nerve system. We determined the crystal structure of the entire extracellular region of the group II receptor and that of the ligand-binding reg ...

    Metabotropic glutamate receptors play major roles in the activation of excitatory synapses in the central nerve system. We determined the crystal structure of the entire extracellular region of the group II receptor and that of the ligand-binding region of the group III receptor. A comparison among groups I, II, and III provides the structural basis that could account for the discrimination of group-specific agonists. Furthermore, the structure of group II includes the cysteine-rich domain, which is tightly linked to the ligand-binding domain by a disulfide bridge, suggesting a potential role in transmitting a ligand-induced conformational change into the downstream transmembrane region. The structure also reveals the lateral interaction between the two cysteine-rich domains, which could stimulate clustering of the dimeric receptors on the cell surface. We propose a general activation mechanism of the dimeric receptor coupled with both ligand-binding and interprotomer rearrangements.


    Organizational Affiliation

    Biomolecular Engineering Research Institute, 6-2-3 Furuedai, Suita, Osaka 565-0874, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Metabotropic glutamate receptor 3
A, B
555Rattus norvegicusMutation(s): 2 
Gene Names: Grm3 (Gprc1c, Mglur3)
Find proteins for P31422 (Rattus norvegicus)
Go to UniProtKB:  P31422
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
C5A
Query on C5A

Download SDF File 
Download CCD File 
A, B
(1S,3S)-1-aminocyclopentane-1,3-dicarboxylic acid
1S,3S-ACPD
C7 H11 N O4
YFYNOWXBIBKGHB-FFWSUHOLSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.267 
  • R-Value Work: 0.236 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 83.739α = 90.00
b = 97.313β = 92.94
c = 107.814γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
CNSrefinement
ADSCdata collection
AMoREphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-02-27
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance