Crystal structure of a novel dimeric form of HCV NS5A domain I protein

Experimental Data Snapshot

  • Resolution: 1.90 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.247 
  • R-Value Observed: 0.248 

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Crystal structure of a novel dimeric form of NS5A domain I protein from hepatitis C virus

Love, R.A.Brodsky, O.Hickey, M.J.Wells, P.A.Cronin, C.N.

(2009) J Virol 83: 4395-4403

  • DOI: https://doi.org/10.1128/JVI.02352-08
  • Primary Citation of Related Structures:  
    3FQM, 3FQQ

  • PubMed Abstract: 

    A new protein expression vector design utilizing an N-terminal six-histidine tag and tobacco etch virus protease cleavage site upstream of the hepatitis C virus NS5A sequence has resulted in a more straightforward purification method and improved yields of purified NS5A domain I protein. High-resolution diffracting crystals of NS5A domain I (amino acids 33 to 202) [NS5A(33-202)] were obtained by using detergent additive crystallization screens, leading to the structure of a homodimer which is organized differently from that published previously (T. L. Tellinghuisen, J. Marcotrigiano, and C. M. Rice, Nature 435:374-379, 2005) yet is consistent with a membrane association model for NS5A. The monomer-monomer interface of NS5A(33-202) features an extensive buried surface area involving the most-highly conserved face of each monomer. The two alternate structural forms of domain I now available may be indicative of the multiple roles emerging for NS5A in viral RNA replication and viral particle assembly.

  • Organizational Affiliation

    Structural Biology Group, Pfizer Global Research and Development, La Jolla Laboratories, San Diego, California 92121, USA. robert.love@pfizer.com

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Non-structural protein 5A
A, B
177Hepatitis C virus (isolate Con1)Mutation(s): 0 
Gene Names: Nonstructural protein 5A
Membrane Entity: Yes 
Find proteins for Q9WMX2 (Hepatitis C virus genotype 1b (isolate Con1))
Explore Q9WMX2 
Go to UniProtKB:  Q9WMX2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9WMX2
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.90 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.247 
  • R-Value Observed: 0.248 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.165α = 90
b = 57.165β = 90
c = 195.385γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

  • Released Date: 2009-03-10 
  • Deposition Author(s): Love, R.A.

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Non-polymer description, Version format compliance
  • Version 1.2: 2019-07-24
    Changes: Data collection, Refinement description
  • Version 1.3: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description