1LB9

Crystal structure of the Non-desensitizing GluR2 ligand binding core mutant (S1S2J-L483Y) in complex with antagonist DNQX at 2.3 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.268
  • R-Value Work: 0.220

Literature

Macromolecules
Sequence Display for 1LB9

Classification: MEMBRANE PROTEIN

Total Structure Weight: 59139.71

Macromolecule Entities
Molecule Chains Length Organism Details
Glutamate receptor 2 A, B 263 Rattus norvegicus Fragment: ligand binding core (flop)
Mutation: L94Y
Gene Name(s): Gria2 Glur2
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
DNQ
Query on DNQ

A, B 6,7-DINITROQUINOXALINE-2,3-DIONE
DNQX (Synonym)
C8 H2 N4 O6
YEUPBRRGMWBCEB-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
SO4
Query on SO4

B SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
DNQ Ki: 1660 - 2090 nM (87) BindingDB

N/A in BindingMoad
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.268
  • R-Value Work: 0.220
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 62.28 α = 90.00
b = 93.41 β = 90.00
c = 97.87 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2002-04-02
  • Released Date: 2002-06-05
  • Deposition author(s): Sun, Y., Olson, R., Horning, M., Armstrong, N., Mayer, M., Gouaux, E.

Revision History

  • Version 1_0: 2002-06-05

    Type: Initial release

  • Version 1_1: 2008-04-28

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Version format compliance

  • Version 1_3: 2017-08-16

    Type: Refinement description, Source and taxonomy