7DR8

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

• PDB DOI: https://doi.org/10.2210/pdb7DR8/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Middle East respiratory syndrome-related coronavirus
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2020-12-26 Released: 2021-12-29 
• Deposition Author(s): Zhang, Y.T., Gao, H.X., Zhou, H., Zhong, F.L., Hu, X.H., Zhou, X.L., Lin, C., Wang, Q.S., Li, J., Zhang, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.34 Å
• R-Value Free: 0.267 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 

Literature

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

Zhang, Y.T., Gao, H.X., Zhou, H., Zhong, F.L., Hu, X.H., Zhou, X.L., Lin, C., Wang, Q.S., Li, J., Zhang, 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: 4,573 
• Modelled Residue Count: 593 
• 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): 0  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: 2.34 Å
• R-Value Free: 0.267 
• R-Value Work: 0.214 
• R-Value Observed: 0.216 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 79.908	α = 90
b = 94.68	β = 90
c = 97.674	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
DENZO	data reduction
HKL-2000	data scaling
PHENIX	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-12-29 
Deposition Author(s): Zhang, Y.T., Gao, H.X., Zhou, H., Zhong, F.L., Hu, X.H., Zhou, X.L., Lin, C., Wang, Q.S., Li, J., Zhang, J.

Revision History  

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