1HFG

NMR solution structure of vMIP-II 1-71 from Kaposi's sarcoma-associated herpesvirus (minimized average structure).


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 
  • Conformers Submitted: 

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This is version 1.2 of the entry. See complete history


Literature

Structure/Function of Human Herpesvirus-8 Mip-II (1-71) and the Antagonist N-Terminal Segment (1-10)

Crump, M.P.Elisseeva, E.Gong, J.-H.Clark-Lewis, I.Sykes, B.D.

(2001) FEBS Lett 489: 171

  • DOI: 10.1016/s0014-5793(00)02393-0
  • Primary Citation of Related Structures:  
    1HFF, 1HFN, 1HFG

  • PubMed Abstract: 
  • Kaposi's sarcoma-associated herpesvirus encodes a chemokine called vMIP-II that has been shown to be a broad range human chemokine receptor antagonist. Two N-terminal peptides, vMIP-II(1-10) and vMIP-II(1-11)dimer (dimerised through Cys11) were synthesised ...

    Kaposi's sarcoma-associated herpesvirus encodes a chemokine called vMIP-II that has been shown to be a broad range human chemokine receptor antagonist. Two N-terminal peptides, vMIP-II(1-10) and vMIP-II(1-11)dimer (dimerised through Cys11) were synthesised. Both peptides are shown to bind the CXC chemokine receptor 4 (CXCR4). vMIP-II(1-10) was 1400-fold less potent than the native protein whilst the vMIP-II(1-11)dimer was only 180-fold less potent. In addition, both peptides are CXCR4 antagonists. Through analysis of non-standard, long mixing time two-dimensional nuclear Overhauser enhancement spectroscopy experiments, 13C relaxation data and amide chemical shift temperature gradients for the N-terminus of vMIP-II, we show that this region populates a turn-like structure over residues 5-8, both in the presence and absence of the full protein scaffold. This major conformation is likely to be in fast exchange with other conformational states but it has not previously been detected in monomeric chemokine structures. This and other studies [Elisseeva et al. (2000) J. Biol. Chem. 275, 26799-26805] suggest that there may be a link between the structuring of the short N-terminal chemokine peptides and their ability to bind their receptor.


    Organizational Affiliation

    Protein Engineering Network of Centers of Excellence, Department of Biochemistry, Heritage Medical Research Center, University of Alberta, Edmonton, Canada.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VIRAL MACROPHAGE INFLAMMATORY PROTEIN-II A71Human gammaherpesvirus 8Mutation(s): 0 
Find proteins for Q98157 (Human herpesvirus 8 type P (isolate GK18))
Explore Q98157 
Go to UniProtKB:  Q98157
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 
  • Conformers Submitted: 
  • OLDERADO: 1HFG Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-01-07
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance