7DRA

Crystal structure of MERS-CoV 3CL protease (C148A) in spacegroup P212121,pH 9.0

• PDB DOI: https://doi.org/10.2210/pdb7DRA/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): Zhang, Y.T., Zhou, X.L., Li, J., Zhang, J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.78 Å
• R-Value Free: 0.262 
• R-Value Work: 0.219 
• R-Value Observed: 0.221 

Starting Model: experimental

Literature

Crystal structure of MERS-CoV 3CL protease (C148A) in spacegroup P212121,pH 9.0

Zhang, Y.T., Zhou, X.L., 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: 4,154 
• Modelled 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: 0.262 
• R-Value Work: 0.219 
• R-Value Observed: 0.221 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.193	α = 90
b = 94.485	β = 90
c = 97.265	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
CrysalisPro	data reduction
HKL-2000	data scaling
HKL-3000	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-12-29 
Deposition Author(s): Zhang, Y.T., Zhou, X.L., 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