1BT7

THE SOLUTION NMR STRUCTURE OF THE N-TERMINAL PROTEASE DOMAIN OF THE HEPATITIS C VIRUS (HCV) NS3-PROTEIN, FROM BK STRAIN, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS/MINIMUM ENERGY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The solution structure of the N-terminal proteinase domain of the hepatitis C virus (HCV) NS3 protein provides new insights into its activation and catalytic mechanism.

Barbato, G.Cicero, D.O.Nardi, M.C.Steinkuhler, C.Cortese, R.De Francesco, R.Bazzo, R.

(1999) J.Mol.Biol. 289: 371-384

  • DOI: 10.1006/jmbi.1999.2745
  • Also Cited By: 1DXW

  • PubMed Abstract: 
  • The solution structure of the hepatitis C virus (BK strain) NS3 protein N-terminal domain (186 residues) has been solved by NMR spectroscopy. The protein is a serine protease with a chymotrypsin-type fold, and is involved in the maturation of the vir ...

    The solution structure of the hepatitis C virus (BK strain) NS3 protein N-terminal domain (186 residues) has been solved by NMR spectroscopy. The protein is a serine protease with a chymotrypsin-type fold, and is involved in the maturation of the viral polyprotein. Despite the knowledge that its activity is enhanced by the action of a viral protein cofactor, NS4A, the mechanism of activation is not yet clear. The analysis of the folding in solution and the differences from the crystallographic structures allow the formulation of a model in which, in addition to the NS4A cofactor, the substrate plays an important role in the activation of the catalytic mechanism. A unique structural feature is the presence of a zinc-binding site exposed on the surface, subject to a slow conformational exchange process.


    Related Citations: 
    • Complex of Ns3 Protease and Ns4A Peptide of Bk Strain Hepatitis C Virus: A 2.2 A Resolution Structure in a Hexagonal Crystal Form
      Yan, Y.,Li, Y.,Munshi, S.,Sardana, V.,Cole, J.L.,Sardana, M.,Steinkuehler, C.,Tomei, L.,De Francesco, R.,Kuo, L.C.,Chen, Z.
      (1998) Protein Sci. 7: 837
    • The Crystal Structure of Hepatitis C Virus Ns3 Proteinase Reveals a Trypsin-Like Fold and a Structural Zinc Binding Site
      Love, R.A.,Parge, H.E.,Wickersham, J.A.,Hostomsky, Z.,Habuka, N.,Moomaw, E.W.,Adachi, T.,Hostomska, Z.
      (1996) Cell 87: 331
    • The Metal Binding Site of the Hepatitis C Virus Ns3 Protease. A Spectroscopic Investigation
      Urbani, A.,Bazzo, R.,Nardi, M.C.,Cicero, D.O.,De Francesco, R.,Steinkuhler, C.,Barbato, G.
      (1998) J.Biol.Chem. 273: 18760
    • 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
    • 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

    IRBM "P. Angeletti", Via Pontina km 30.600, Pomezia, Roma, 00040, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NS3 SERINE PROTEASE
A
186Hepatitis C virus genotype 1bEC: 3.6.1.15, 3.4.22.-, 3.6.4.13, 2.7.7.48, 3.4.21.98
Find proteins for P26663 (Hepatitis C virus genotype 1b)
Go to UniProtKB:  P26663
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATIONS/MINIMUM ENERGY 
  • Olderado: 1BT7 Olderado
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-06-22
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance