3QLU

Crystal structure of the GluK2/GluK5 (GluR6/KA2) ATD dimer assembly

• PDB DOI: https://doi.org/10.2210/pdb3QLU/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Rattus norvegicus
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2011-02-03 Released: 2011-08-03 
• Deposition Author(s): Kumar, J., Mayer, M.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.91 Å
• R-Value Free: 0.256 
• R-Value Work: 0.197 
• R-Value Observed: 0.200 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 180.95 kDa 
• Atom Count: 12,009 
• Modelled Residue Count: 1,498 
• Deposited Residue Count: 1,576 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate receptor, ionotropic kainate 5	A, B	393	Rattus norvegicus	Mutation(s): 0  Gene Names: Grik5
UniProt
Find proteins for Q63273 (Rattus norvegicus) Explore Q63273  Go to UniProtKB:  Q63273

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Glutamate receptor, ionotropic kainate 2	C, D	395	Rattus norvegicus	Mutation(s): 2  Gene Names: Glur6, Grik2
UniProt
Find proteins for P42260 (Rattus norvegicus) Explore P42260  Go to UniProtKB:  P42260

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth B], K [auth B], L [auth B], M [auth B], N [auth B], Q [auth C], R [auth C], S [auth C], U [auth D], V [auth D], W [auth D]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
GOL	P [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL	O [auth B], T [auth C]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.91 Å
• R-Value Free: 0.256 
• R-Value Work: 0.197 
• R-Value Observed: 0.200 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.626	α = 90
b = 139.548	β = 90
c = 195.41	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-08-03 
Deposition Author(s): Kumar, J., Mayer, M.L.

Revision History  

• Version 1.0: 2011-08-03
  Type: Initial release
  
• Version 1.1: 2012-10-10
  Changes: Database references
• Version 1.2: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Data collection, Database references, Derived calculations, Structure summary
• Version 1.3: 2021-03-31
  Changes: Source and taxonomy, Structure summary
• Version 1.4: 2023-09-13
  Changes: Advisory, Data collection, Database references, Refinement description