2QC2 | pdb_00002qc2

Crystal structure of Severe Acute Respiratory Syndrome (SARS) 3C-like protease Asn214Ala mutant

• PDB DOI: https://doi.org/10.2210/pdb2QC2/pdb

• Classification: HYDROLASE
• Organism(s): Severe acute respiratory syndrome coronavirus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2007-06-19 Released: 2008-07-01 
• Deposition Author(s): Shi, J.H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.281 (Depositor), 0.280 (DCC) 
• R-Value Work: 
  0.206 (Depositor), 0.210 (DCC) 

Starting Model: experimental

Literature

Crystal structure of Severe Acute Respiratory Syndrome (SARS) 3C-like protease Asn214Ala mutant with two non-native n-terminal residues (GLY AND SER)

Shi, J.H.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content 

• Total Structure Weight: 67.96 kDa 
• Atom Count: 4,782 
• Modeled Residue Count: 610 
• Deposited Residue Count: 616 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase	A, B	308	N/A	Mutation(s): 1  Gene Names: rep EC: 3.4.22
UniProt
Find proteins for P0C6X7 (Severe acute respiratory syndrome coronavirus) Explore P0C6X7  Go to UniProtKB:  P0C6X7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.281 (Depositor), 0.280 (DCC) 
• R-Value Work:  0.206 (Depositor), 0.210 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.286	α = 90
b = 96.516	β = 103.28
c = 67.65	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
MOLREP	phasing
CNS	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-07-01 
Deposition Author(s): Shi, J.H.

Revision History  

• Version 1.0: 2008-07-01
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.2: 2017-10-18
  Changes: Refinement description
• Version 1.3: 2021-10-20
  Changes: Database references
• Version 1.4: 2023-08-30
  Changes: Data collection, Refinement description