1KP7

Conserved RNA Structure within the HCV IRES eIF3 Binding Site


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 
  • Selection Criteria: energy-minimized average of 26 converged conformers with low energy and low restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A conserved RNA structure within the HCV IRES eIF3-binding site.

Collier, A.J.Gallego, J.Klinck, R.Cole, P.T.Harris, S.J.Harrison, G.P.Aboul-Ela, F.Varani, G.Walker, S.

(2002) Nat.Struct.Mol.Biol. 9: 375-380

  • DOI: 10.1038/nsb785

  • PubMed Abstract: 
  • The hepatitis C virus (HCV) internal ribosome entry site (IRES) is recognized specifically by the small ribosomal subunit and eukaryotic initiation factor 3 (eIF3) before viral translation initiation. Using extensive mutagenesis and structure probing ...

    The hepatitis C virus (HCV) internal ribosome entry site (IRES) is recognized specifically by the small ribosomal subunit and eukaryotic initiation factor 3 (eIF3) before viral translation initiation. Using extensive mutagenesis and structure probing analysis, we show that the eIF3-binding domain of the HCV IRES contains an internal loop structure (loop IIIb) and an adjacent mismatched helix that are important for IRES-dependent initiation of translation. NMR studies reveal a unique three-dimensional structure for this internal loop that is conserved between viral isolates of varying primary sequence in this region. These data indicate that internal loop IIIb may be an attractive target for structure-based design of new antiviral agents.


    Organizational Affiliation

    RiboTargets Ltd., Granta Park, Abington, Cambridge, CB1 6GB, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
Hepatitis C Virus Internal Ribosome Entry Site FragmentA30N/A
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 26 
  • Conformers Submitted: 
  • Selection Criteria: energy-minimized average of 26 converged conformers with low energy and low restraint violations 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-04-10
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance