7DR9 | pdb_00007dr9

Crystal structure of MERS-CoV 3CL protease (C148A) in spacegroup P212121

• PDB DOI: https://doi.org/10.2210/pdb7DR9/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Middle East respiratory syndrome-related coronavirus
• Expression System: Escherichia coli BL21
• Mutation(s): Yes 


• Deposited: 2020-12-27 Released: 2021-12-29 
• Deposition Author(s): Zhong, F.L., Lin, C., Zhang, J., Li, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.78 Å
• R-Value Free: 
  0.272 (Depositor), 0.270 (DCC) 
• R-Value Work: 
  0.223 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.226 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of MERS-CoV 3CL protease (C148A) in spacegroup P212121

Zhong, F.L., Lin, C., Zhang, J., Li, J.

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 (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 66.64 kDa 
• Atom Count: 4,127 
• Modeled Residue Count: 565 
• Deposited Residue Count: 612 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase	A, B	306	Middle East respiratory syndrome-related coronavirus	Mutation(s): 1  EC: 3.4.22.69
UniProt
Find proteins for K9N7C7 (Middle East respiratory syndrome-related coronavirus (isolate United Kingdom/H123990006/2012)) Explore K9N7C7  Go to UniProtKB:  K9N7C7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.78 Å
• R-Value Free:  0.272 (Depositor), 0.270 (DCC) 
• R-Value Work:  0.223 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.226 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.693	α = 90
b = 94.051	β = 90
c = 97.625	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
AUTOMAR	data reduction
SCALA	data scaling
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-12-29 
Deposition Author(s): Zhong, F.L., Lin, C., Zhang, J., Li, J.

Revision History  

• Version 1.0: 2021-12-29
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description