2K03

Structure of SDF1 in complex with the CXCR4 N-terminus containing a sulfotyrosine at postition 21


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 1.6 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: https://doi.org/10.1126/scisignal.1160755
  • Primary Citation of Related Structures:  
    2K01, 2K03, 2K04, 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Stromal cell-derived factor 1
A, C
70Homo sapiensMutation(s): 2 
Gene Names: CXCL12SDF1SDF1ASDF1B
UniProt & NIH Common Fund Data Resources
Find proteins for P48061 (Homo sapiens)
Explore P48061 
Go to UniProtKB:  P48061
PHAROS:  P48061
GTEx:  ENSG00000107562 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP48061
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
C-X-C chemokine receptor type 4
B, D
40Homo sapiensMutation(s): 1 
Gene Names: CXCR4
UniProt & NIH Common Fund Data Resources
Find proteins for P61073 (Homo sapiens)
Explore P61073 
Go to UniProtKB:  P61073
PHAROS:  P61073
GTEx:  ENSG00000121966 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61073
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
TYS
Query on TYS
B, D
L-PEPTIDE LINKINGC9 H11 N O6 STYR
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-02-19
    Changes: Data collection, Database references, Derived calculations, Other
  • Version 1.3: 2021-10-20
    Changes: Database references
  • Version 1.4: 2023-06-14
    Changes: Other
  • Version 1.5: 2023-11-15
    Changes: Data collection
  • Version 1.6: 2024-10-09
    Changes: Database references, Structure summary