6IQL

Crystal structure of dopamine receptor D4 bound to the subtype-selective ligand, L745870


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.306 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structure of dopamine receptor D4 bound to the subtype selective ligand, L745870.

Cao, C.He, L.Wang, X.Zhang, X.C.Zhou, Y.

(2019) Elife 8: --

  • DOI: 10.7554/eLife.48822

  • PubMed Abstract: 
  • Multiple subtypes of dopamine receptors within the GPCR superfamily regulate neurological processes through various downstream signaling pathways. A crucial question about the dopamine receptor family is what structural features determine the subtype ...

    Multiple subtypes of dopamine receptors within the GPCR superfamily regulate neurological processes through various downstream signaling pathways. A crucial question about the dopamine receptor family is what structural features determine the subtype-selectivity of potential drugs. Here, we report the 3.5-angstrom crystal structure of mouse dopamine receptor D4 (DRD4) complexed with a subtype-selective antagonist, L745870. Our structure reveals a secondary binding pocket extended from the orthosteric ligand-binding pocket to a DRD4-specific crevice located between transmembrane helices 2 and 3. Additional mutagenesis studies suggest that the antagonist L745870 prevents DRD4 activation by blocking the relative movement between transmembrane helices 2 and 3. These results expand our knowledge of the molecular basis for the physiological functions of DRD4 and assist new drug design.


    Organizational Affiliation

    University of Chinese Academy of Sciences, Beijing, China.,National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
D(4) dopamine receptor,Soluble cytochrome b562,D(4) dopamine receptor
A, B
396Escherichia coliMus musculus
This entity is chimeric
Mutation(s): 6 
Gene Names: cybC, Drd4
Membrane protein
mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Dopamine D4 receptor complexed with nemonapride
Find proteins for P0ABE7 (Escherichia coli)
Go to UniProtKB:  P0ABE7
Find proteins for P51436 (Mus musculus)
Go to UniProtKB:  P51436
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
L74
Query on L74

Download SDF File 
Download CCD File 
A, B
3-{[4-(4-chlorophenyl)piperazin-1-yl]methyl}-1H-pyrrolo[2,3-b]pyridine
C18 H19 Cl N4
OGJGQVFWEPNYSB-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.306 
  • Space Group: P 21 2 21
Unit Cell:
Length (Å)Angle (°)
a = 46.700α = 90.00
b = 142.000β = 90.00
c = 146.000γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
PHASERphasing
PDB_EXTRACTdata extraction
XSCALEdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2015CB910104
National Natural Science Foundation of ChinaChina31470745
Chinese Academy of SciencesChinaXDB08020301

Revision History 

  • Version 1.0: 2019-12-04
    Type: Initial release