3PBL

Structure of the human dopamine D3 receptor in complex with eticlopride


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.89 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 

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This is version 2.0 of the entry. See complete history


Literature

Structure of the human dopamine d3 receptor in complex with a d2/d3 selective antagonist.

Chien, E.Y.Liu, W.Zhao, Q.Katritch, V.Han, G.W.Hanson, M.A.Shi, L.Newman, A.H.Javitch, J.A.Cherezov, V.Stevens, R.C.

(2010) Science 330: 1091-1095

  • DOI: 10.1126/science.1197410
  • Primary Citation of Related Structures:  
    3PBL

  • PubMed Abstract: 
  • Dopamine modulates movement, cognition, and emotion through activation of dopamine G protein-coupled receptors in the brain. The crystal structure of the human dopamine D3 receptor (D3R) in complex with the small molecule D2R/D3R-specific antagonist eticlopride reveals important features of the ligand binding pocket and extracellular loops ...

    Dopamine modulates movement, cognition, and emotion through activation of dopamine G protein-coupled receptors in the brain. The crystal structure of the human dopamine D3 receptor (D3R) in complex with the small molecule D2R/D3R-specific antagonist eticlopride reveals important features of the ligand binding pocket and extracellular loops. On the intracellular side of the receptor, a locked conformation of the ionic lock and two distinctly different conformations of intracellular loop 2 are observed. Docking of R-22, a D3R-selective antagonist, reveals an extracellular extension of the eticlopride binding site that comprises a second binding pocket for the aryl amide of R-22, which differs between the highly homologous D2R and D3R. This difference provides direction to the design of D3R-selective agents for treating drug abuse and other neuropsychiatric indications.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
D(3) dopamine receptor, Lysozyme chimeraA, B481Homo sapiensEscherichia virus T4Mutation(s): 3 
Gene Names: DRD3E
EC: 3.2.1.17
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P35462 (Homo sapiens)
Explore P35462 
Go to UniProtKB:  P35462
PHAROS:  P35462
Find proteins for P00720 (Enterobacteria phage T4)
Explore P00720 
Go to UniProtKB:  P00720
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranoseC, D2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G07411ON
GlyCosmos:  G07411ON
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ETQ (Subject of Investigation/LOI)
Query on ETQ

Download Ideal Coordinates CCD File 
E [auth A], F [auth B]3-chloro-5-ethyl-N-{[(2S)-1-ethylpyrrolidin-2-yl]methyl}-6-hydroxy-2-methoxybenzamide
C17 H25 Cl N2 O3
AADCDMQTJNYOSS-LBPRGKRZSA-N
 Ligand Interaction
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_900001
Query on PRD_900001
C, Dalpha-maltoseOligosaccharide / Nutrient Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.89 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.245 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.828α = 90
b = 92.492β = 90
c = 176.116γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
PHASERphasing
BUSTERrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-11-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2012-05-09
    Changes: Structure summary
  • Version 1.3: 2017-08-16
    Changes: Refinement description, Source and taxonomy
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary