2K04

Structure of SDF1 in complex with the CXCR4 N-terminus containing no sulfotyrosines


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis of CXCR4 sulfotyrosine recognition by the chemokine SDF-1/CXCL12

Veldkamp, C.T.Seibert, C.Peterson, F.C.De la Cruz, N.B.Haugner, J.C.Basnet, H.Sakmar, T.P.Volkman, B.F.

(2008) Sci.Signal. 1: ra4-ra4

  • DOI: 10.1126/scisignal.1160755
  • Primary Citation of Related Structures:  2K01, 2K03, 2K05

  • PubMed Abstract: 
  • Stem cell homing and breast cancer metastasis are orchestrated by the chemokine stromal cell-derived factor 1 (SDF-1) and its receptor CXCR4. Here, we report the nuclear magnetic resonance structure of a constitutively dimeric SDF-1 in complex with a ...

    Stem cell homing and breast cancer metastasis are orchestrated by the chemokine stromal cell-derived factor 1 (SDF-1) and its receptor CXCR4. Here, we report the nuclear magnetic resonance structure of a constitutively dimeric SDF-1 in complex with a CXCR4 fragment that contains three sulfotyrosine residues important for a high-affinity ligand-receptor interaction. CXCR4 bridged the SDF-1 dimer interface so that sulfotyrosines sTyr7 and sTyr12 of CXCR4 occupied positively charged clefts on opposing chemokine subunits. Dimeric SDF-1 induced intracellular Ca2+ mobilization but had no chemotactic activity; instead, it prevented native SDF-1-induced chemotaxis, suggesting that it acted as a potent partial agonist. Our work elucidates the structural basis for sulfotyrosine recognition in the chemokine-receptor interaction and suggests a strategy for CXCR4-targeted drug development.


    Organizational Affiliation

    Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Stromal cell-derived factor 1
A, C
70Homo sapiensGene Names: CXCL12 (SDF1, SDF1A, SDF1B)
Find proteins for P48061 (Homo sapiens)
Go to Gene View: CXCL12
Go to UniProtKB:  P48061
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
C-X-C chemokine receptor type 4
B, D
40Homo sapiensGene Names: CXCR4
Find proteins for P61073 (Homo sapiens)
Go to Gene View: CXCR4
Go to UniProtKB:  P61073
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 
  • Olderado: 2K04 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-22
    Type: Database references, Derived calculations