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
  • Structures With Same Primary Citation

  • 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 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
    • 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
    • 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
    • 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

    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
186Hepacivirus CMutation(s): 0 
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 P26663 (Hepatitis C virus genotype 1b (isolate BK))
Go to UniProtKB:  P26663
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

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

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

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