1A1R

HCV NS3 PROTEASE DOMAIN:NS4A PEPTIDE COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the hepatitis C virus NS3 protease domain complexed with a synthetic NS4A cofactor peptide.

Kim, J.L.Morgenstern, K.A.Lin, C.Fox, T.Dwyer, M.D.Landro, J.A.Chambers, S.P.Markland, W.Lepre, C.A.O'Malley, E.T.Harbeson, S.L.Rice, C.M.Murcko, M.A.Caron, P.R.Thomson, J.A.

(1996) Cell 87: 343-355

  • DOI: 10.1016/s0092-8674(00)81351-3
  • Primary Citation of Related Structures:  
    1A1R

  • PubMed Abstract: 
  • An estimated 1% of the global human population is infected by hepatitis C viruses (HCVs), and there are no broadly effective treatments for the debilitating progression of chronic hepatitis C. A serine protease located within the HCV NS3 protein proc ...

    An estimated 1% of the global human population is infected by hepatitis C viruses (HCVs), and there are no broadly effective treatments for the debilitating progression of chronic hepatitis C. A serine protease located within the HCV NS3 protein processes the viral polyprotein at four specific sites and is considered essential for replication. Thus, it emerges as an attractive target for drug design. We report here the 2.5 angstrom resolution X-ray crystal structure of the NS3 protease domain complexed with a synthetic NS4A activator peptide. The protease has a chymotrypsin-like fold and features a tetrahedrally coordinated metal ion distal to the active site. The NS4A peptide intercalates within a beta sheet of the enzyme core.


    Related Citations: 
    • Erratum. Crystal Structure of the Hepatitis C Virus Ns3 Protease Domain Complexed with a Synthetic Ns4A Cofactor Peptide
      Kim, J.L., Morgenstern, K.A., Lin, C., Fox, T., Dwyer, M.D., Landro, J.A., Chambers, S.P., Markland, W., Lepre, C.A., O'Malley, E.T., Harbeson, S.L., Rice, C.M., Murcko, M.A., Caron, P.R., Thomson, J.A.
      (1997) Cell 89: 159

    Organizational Affiliation

    Vertex Pharmaceuticals Incorporated, Cambridge, Massachusetts 02139-4242, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NS3 PROTEINAB198Hepacivirus CMutation(s): 1 
Gene Names: NS3
EC: 3.4.22 (UniProt), 3.4.21.98 (UniProt), 3.6.1.15 (UniProt), 3.6.4.13 (UniProt), 2.7.7.48 (UniProt)
Find proteins for P27958 (Hepatitis C virus genotype 1a (isolate H77))
Explore P27958 
Go to UniProtKB:  P27958
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
NS4A PROTEINCD23Hepacivirus CMutation(s): 1 
Gene Names: NS3NS4a/b
Find proteins for O39914 (Hepacivirus C)
Explore O39914 
Go to UniProtKB:  O39914
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.216 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 225α = 90
b = 225β = 90
c = 75.45γ = 120
Software Package:
Software NamePurpose
DMmodel building
PHASESphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
DMphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance