3OE6

Crystal structure of the CXCR4 chemokine receptor in complex with a small molecule antagonist IT1t in I222 spacegroup


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structures of the CXCR4 chemokine GPCR with small-molecule and cyclic peptide antagonists.

Wu, B.Chien, E.Y.Mol, C.D.Fenalti, G.Liu, W.Katritch, V.Abagyan, R.Brooun, A.Wells, P.Bi, F.C.Hamel, D.J.Kuhn, P.Handel, T.M.Cherezov, V.Stevens, R.C.

(2010) Science 330: 1066-1071

  • DOI: 10.1126/science.1194396
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Chemokine receptors are critical regulators of cell migration in the context of immune surveillance, inflammation, and development. The G protein-coupled chemokine receptor CXCR4 is specifically implicated in cancer metastasis and HIV-1 infection. He ...

    Chemokine receptors are critical regulators of cell migration in the context of immune surveillance, inflammation, and development. The G protein-coupled chemokine receptor CXCR4 is specifically implicated in cancer metastasis and HIV-1 infection. Here we report five independent crystal structures of CXCR4 bound to an antagonist small molecule IT1t and a cyclic peptide CVX15 at 2.5 to 3.2 angstrom resolution. All structures reveal a consistent homodimer with an interface including helices V and VI that may be involved in regulating signaling. The location and shape of the ligand-binding sites differ from other G protein-coupled receptors and are closer to the extracellular surface. These structures provide new clues about the interactions between CXCR4 and its natural ligand CXCL12, and with the HIV-1 glycoprotein gp120.


    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
C-X-C chemokine receptor type 4, Lysozyme Chimera
A
508Homo sapiensEnterobacteria phage T4
This entity is chimeric
Mutation(s): 3 
Gene Names: CXCR4, E
EC: 3.2.1.17
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
CXCR4 chemokine receptor complexed with IT1t antagonist
Find proteins for P61073 (Homo sapiens)
Go to Gene View: CXCR4
Go to UniProtKB:  P61073
Find proteins for P00720 (Enterobacteria phage T4)
Go to UniProtKB:  P00720
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
OLC
Query on OLC

Download SDF File 
Download CCD File 
A
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
1-Oleoyl-R-glycerol
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
ITD
Query on ITD

Download SDF File 
Download CCD File 
A
(6,6-dimethyl-5,6-dihydroimidazo[2,1-b][1,3]thiazol-3-yl)methyl N,N'-dicyclohexylimidothiocarbamate
C21 H34 N4 S2
OOSUDWRRWZVFEB-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ITDIC50: 11 nM (88) BINDINGDB
ITDKi: 8.2 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.232 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 71.121α = 90.00
b = 78.711β = 90.00
c = 240.592γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
Blu-Icedata collection
PHASERphasing
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-10-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-05-02
    Type: Structure summary
  • Version 1.3: 2017-07-26
    Type: Refinement description, Source and taxonomy