2R3Z

Crystal structure of mouse IP-10


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.308 
  • R-Value Work: 0.275 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of mouse IP-10, a chemokine

Jabeen, T.Leonard, P.Jamaluddin, H.Acharya, K.R.

(2008) Acta Crystallogr.,Sect.D 64: 611-619

  • DOI: 10.1107/S0907444908007026

  • PubMed Abstract: 
  • Interferon-gamma-inducible protein (IP-10) belongs to the CXC class of chemokines and plays a significant role in the pathophysiology of various immune and inflammatory responses. It is also a potent angiostatic factor with antifibrotic properties. T ...

    Interferon-gamma-inducible protein (IP-10) belongs to the CXC class of chemokines and plays a significant role in the pathophysiology of various immune and inflammatory responses. It is also a potent angiostatic factor with antifibrotic properties. The biological activities of IP-10 are exerted by interactions with the G-protein-coupled receptor CXCR3 expressed on Th1 lymphocytes. IP-10 thus forms an attractive target for structure-based rational drug design of anti-inflammatory molecules. The crystal structure of mouse IP-10 has been determined and reveals a novel tetrameric association. In the tetramer, two conventional CXC chemokine dimers are associated through their N-terminal regions to form a 12-stranded elongated beta-sheet of approximately 90 A in length. This association differs significantly from the previously studied tetramers of human IP-10, platelet factor 4 and neutrophil-activating peptide-2. In addition, heparin- and receptor-binding residues were mapped on the surface of IP-10 tetramer. Two heparin-binding sites were observed on the surface and were present at the interface of each of the two beta-sheet dimers. The structure supports the formation of higher order oligomers of IP-10, as observed in recent in vivo studies with mouse IP-10, which will have functional relevance.


    Organizational Affiliation

    Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, England.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Small-inducible cytokine B10
A, B, C, D
68Mus musculusMutation(s): 0 
Gene Names: Cxcl10 (Crg2, Ifi10, Inp10, Scyb10)
Find proteins for P17515 (Mus musculus)
Go to UniProtKB:  P17515
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.308 
  • R-Value Work: 0.275 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 109.957α = 90.00
b = 71.530β = 111.08
c = 39.577γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PHASERphasing
SCALEPACKdata scaling
HKL-2000data collection
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-08-12
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance