2BHG

3C protease from type A10(61) foot-and-mouth disease virus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of Foot-and-Mouth Disease Virus 3C Protease: New Insights Into Catalytic Mechanism and Cleavage Specificity

Birtley, J.R.Knox, S.R.Jaulent, A.M.Brick, P.Leatherbarrow, R.J.Curry, S.

(2005) J.Biol.Chem. 280: 11520

  • DOI: 10.1074/jbc.M413254200
  • Also Cited By: 2J92

  • PubMed Abstract: 
  • Foot-and-mouth disease virus (FMDV) causes a widespread and economically devastating disease of domestic livestock. Although FMDV vaccines are available, political and technical problems associated with their use are driving a renewed search for alte ...

    Foot-and-mouth disease virus (FMDV) causes a widespread and economically devastating disease of domestic livestock. Although FMDV vaccines are available, political and technical problems associated with their use are driving a renewed search for alternative methods of disease control. The viral RNA genome is translated as a single polypeptide precursor that must be cleaved into functional proteins by virally encoded proteases. 10 of the 13 cleavages are performed by the highly conserved 3C protease (3C(pro)), making the enzyme an attractive target for antiviral drugs. We have developed a soluble, recombinant form of FMDV 3C(pro), determined the crystal structure to 1.9-angstroms resolution, and analyzed the cleavage specificity of the enzyme. The structure indicates that FMDV 3C(pro) adopts a chymotrypsin-like fold and possesses a Cys-His-Asp catalytic triad in a similar conformation to the Ser-His-Asp triad conserved in almost all serine proteases. This observation suggests that the dyad-based mechanisms proposed for this class of cysteine proteases need to be reassessed. Peptide cleavage assays revealed that the recognition sequence spans at least four residues either side of the scissile bond (P4-P4') and that FMDV 3C(pro) discriminates only weakly in favor of P1-Gln over P1-Glu, in contrast to other 3C(pro) enzymes that strongly favor P1-Gln. The relaxed specificity may be due to the unexpected absence in FMDV 3C(pro) of an extended beta-ribbon that folds over the substrate binding cleft in other picornavirus 3C(pro) structures. Collectively, these results establish a valuable framework for the development of FMDV 3C(pro) inhibitors.


    Organizational Affiliation

    Biophysics Section, Division of Cell and Molecular Biology, Blackett Laboratory, Imperial College, South Kensington Campus, London, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FOOT-AND-MOUTH DISEASE VIRUS 3C PROTEASE
A, B
209Foot-and-mouth disease virus (strain A10-61)Mutation(s): 2 
Find proteins for P03306 (Foot-and-mouth disease virus (strain A10-61))
Go to UniProtKB:  P03306
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, B
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.218 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 141.589α = 90.00
b = 141.589β = 90.00
c = 43.677γ = 120.00
Software Package:
Software NamePurpose
SHELXphasing
CNSrefinement
SCALAdata scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-02-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance