1UK2

Crystal structure of SARS Coronavirus Main Proteinase (3CLpro) At pH8.0


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The crystal structures of severe acute respiratory syndrome virus main protease and its complex with an inhibitor

Yang, H.Yang, M.Ding, Y.Liu, Y.Lou, Z.Zhou, Z.Sun, L.Mo, L.Ye, S.Pang, H.Gao, G.F.Anand, K.Bartlam, M.Hilgenfeld, R.Rao, Z.

(2003) Proc.Natl.Acad.Sci.USA 100: 13190-13195

  • DOI: 10.1073/pnas.1835675100
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A newly identified severe acute respiratory syndrome coronavirus (SARS-CoV), is the etiological agent responsible for the outbreak of SARS. The SARS-CoV main protease, which is a 33.8-kDa protease (also called the 3C-like protease), plays a pivotal r ...

    A newly identified severe acute respiratory syndrome coronavirus (SARS-CoV), is the etiological agent responsible for the outbreak of SARS. The SARS-CoV main protease, which is a 33.8-kDa protease (also called the 3C-like protease), plays a pivotal role in mediating viral replication and transcription functions through extensive proteolytic processing of two replicase polyproteins, pp1a (486 kDa) and pp1ab (790 kDa). Here, we report the crystal structures of the SARS-CoV main protease at different pH values and in complex with a specific inhibitor. The protease structure has a fold that can be described as an augmented serine-protease, but with a Cys-His at the active site. This series of crystal structures, which is the first, to our knowledge, of any protein from the SARS virus, reveal substantial pH-dependent conformational changes, and an unexpected mode of inhibitor binding, providing a structural basis for rational drug design.


    Organizational Affiliation

    Laboratory of Structural Biology, Tsinghua University and National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Science, 100084 Beijing, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
3C-LIKE PROTEINASE
A, B
306Human SARS coronavirusMutation(s): 0 
Gene Names: rep
Find proteins for P0C6X7 (Human SARS coronavirus)
Go to UniProtKB:  P0C6X7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.226 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.485α = 90.00
b = 97.426β = 101.70
c = 67.535γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
CNSrefinement
DENZOdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-18
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance