6IQL

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 

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Literature

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

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

(2019) Elife 8

  • DOI: 10.7554/eLife.48822
  • Primary Citation of Related Structures:  
    6IQL

  • 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-selectivity of potential drugs ...

    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.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
D(4) dopamine receptor,Soluble cytochrome b562,D(4) dopamine receptorA, B396Mus musculusEscherichia coliMutation(s): 6 
Gene Names: Drd4cybC
Membrane Entity: Yes 
UniProt
Find proteins for P0ABE7 (Escherichia coli)
Explore P0ABE7 
Go to UniProtKB:  P0ABE7
Find proteins for P51436 (Mus musculus)
Explore P51436 
Go to UniProtKB:  P51436
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
L74 (Subject of Investigation/LOI)
Query on L74

Download Ideal Coordinates CCD File 
C [auth A], D [auth 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: 3.50 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 
  • Space Group: P 21 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.7α = 90
b = 142β = 90
c = 146γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PDB_EXTRACTdata extraction
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment  



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  (Full details and data files)

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