1WQS

Crystal structure of Norovirus 3C-like protease


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A norovirus protease structure provides insights into active and substrate binding site integrity

Nakamura, K.Someya, Y.Kumasaka, T.Ueno, G.Yamamoto, M.Sato, T.Takeda, N.Miyamura, T.Tanaka, N.

(2005) J.Virol. 79: 13685-13693

  • DOI: 10.1128/JVI.79.21.13685-13693.2005

  • PubMed Abstract: 
  • Norovirus 3C-like proteases are crucial to proteolytic processing of norovirus polyproteins. We determined the crystal structure of the 3C-like protease from Chiba virus, a norovirus, at 2.8-A resolution. An active site including Cys139 and His30 is ...

    Norovirus 3C-like proteases are crucial to proteolytic processing of norovirus polyproteins. We determined the crystal structure of the 3C-like protease from Chiba virus, a norovirus, at 2.8-A resolution. An active site including Cys139 and His30 is present, as is a hydrogen bond network that stabilizes the active site conformation. In the oxyanion hole backbone, a structural difference was observed probably upon substrate binding. A peptide substrate/enzyme model shows that several interactions between the two components are critical for substrate binding and that the S1 and S2 sites appropriately accommodate the substrate P1 and P2 residues, respectively. Knowledge of the structure and a previous mutagenesis study allow us to correlate proteolysis and structure.


    Organizational Affiliation

    Department of Life Science, Tokyo Institute of Technology, Yokohama 226-8501, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3C-like protease
A, B, C, D
173Chiba virus (strain GI/Human/Japan/Chiba 407/1987)Mutation(s): 0 
Gene Names: ORF1
Find proteins for Q9DU47 (Chiba virus (strain GI/Human/Japan/Chiba 407/1987))
Go to UniProtKB:  Q9DU47
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TAR
Query on TAR

Download SDF File 
Download CCD File 
A
D(-)-TARTARIC ACID
C4 H6 O6
FEWJPZIEWOKRBE-LWMBPPNESA-N
 Ligand Interaction
TLA
Query on TLA

Download SDF File 
Download CCD File 
A
L(+)-TARTARIC ACID
C4 H6 O6
FEWJPZIEWOKRBE-JCYAYHJZSA-N
 Ligand Interaction
HG
Query on HG

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Download CCD File 
A, B, C, D
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.240 
  • R-Value Work: 0.206 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 128.890α = 90.00
b = 128.890β = 90.00
c = 118.080γ = 120.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
SHARPphasing
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-10-04
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance