3M3T

SARS-CoV main protease monomeric Arg298Ala mutant with N-terminal additional residues (Gly-Ser)

• PDB DOI: https://doi.org/10.2210/pdb3M3T/pdb

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


• Deposited: 2010-03-10 Released: 2011-03-23 
• Deposition Author(s): Shi, J.H., Song, J.X.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.273 
• R-Value Work: 0.185 

Starting Model: experimental

Literature

SARS-CoV main protease with N-terminal extension regulated by mutation on C-terminal domain

Shi, J.H., Song, J.X.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 33.93 kDa 
• Atom Count: 2,378 
• Modelled Residue Count: 307 
• Deposited Residue Count: 308 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase	A	308	Severe acute respiratory syndrome-related coronavirus	Mutation(s): 1  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: 2.90 Å
• R-Value Free: 0.273 
• R-Value Work: 0.185 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 33.129	α = 90
b = 66.21	β = 109.15
c = 64.496	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
PHASES	phasing
CNS	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-03-23 
Deposition Author(s): Shi, J.H., Song, J.X.

Revision History  

• Version 1.0: 2011-03-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Refinement description