1CQ3

STRUCTURE OF A SOLUBLE SECRETED CHEMOKINE INHIBITOR, VCCI, FROM COWPOX VIRUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a soluble secreted chemokine inhibitor vCCI (p35) from cowpox virus.

Carfi, A.Smith, C.A.Smolak, P.J.McGrew, J.Wiley, D.C.

(1999) Proc.Natl.Acad.Sci.USA 96: 12379-12383


  • PubMed Abstract: 
  • Most poxviruses, including variola, the causative agent of smallpox, express a secreted protein of 35 kDa, vCCI, which binds CC-chemokines with high affinity. This viral protein competes with the host cellular CC-chemokine receptors (CCRs), reducing ...

    Most poxviruses, including variola, the causative agent of smallpox, express a secreted protein of 35 kDa, vCCI, which binds CC-chemokines with high affinity. This viral protein competes with the host cellular CC-chemokine receptors (CCRs), reducing inflammation and interfering with the host immune response. Such proteins or derivatives may have therapeutic uses as anti-inflammatory agents. We have determined the crystal structure to 1.85-A resolution of vCCI from cowpox virus, the prototype of this poxvirus virulence factor. The molecule is a beta-sandwich of topology not previously described. A patch of conserved residues on the exposed face of a beta-sheet that is strongly negatively charged might have a role in binding of CC-chemokines, which are positively charged.


    Organizational Affiliation

    Laboratory of Molecular Medicine, Howard Hughes Medical Institute, The Children's Hospital, 320 Longwood Avenue, Boston, MA 02115, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
VIRAL CHEMOKINE INHIBITOR
A, B
233Cowpox virusGene Names: vCCI
Find proteins for Q85307 (Cowpox virus)
Go to UniProtKB:  Q85307
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.213 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 61.699α = 90.00
b = 64.423β = 90.00
c = 245.288γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
MLPHAREphasing
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-12
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance