8CDC

Native 3CLpro from SARS-CoV-2 at 1.54 A

• PDB DOI: https://doi.org/10.2210/pdb8CDC/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Severe acute respiratory syndrome coronavirus 2
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2023-01-30 Released: 2024-02-21 
• Deposition Author(s): Mazzei, L., Jovanovic, A., Acton, T.B., Ciurli, S., Montelione, G.T.
• Funding Organization(s): University of Bologna

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.239 
• R-Value Work: 0.185 

Literature

Expression, purification, and characterization of SARS-CoV2 3CLpro in a mature form

Mazzei, L., Greene-Cramer, R., Bafna, K., Jovanovic, A., Acton, T.B., Royer, C.A., Ciurli, S., Montelione, G.T.

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: 33.83 kDa 
• Atom Count: 2,866 
• Modelled Residue Count: 305 
• Deposited Residue Count: 306 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase	A	306	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 0  Gene Names: rep, 1a-1b EC: 3.4.22.69
UniProt
Find proteins for P0DTD1 (Severe acute respiratory syndrome coronavirus 2) Explore P0DTD1  Go to UniProtKB:  P0DTD1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.54 Å
• R-Value Free: 0.239 
• R-Value Work: 0.185 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.063	α = 90
b = 53.485	β = 102.995
c = 44.624	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
REFMAC	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-02-21 
Deposition Author(s): Mazzei, L., Jovanovic, A., Acton, T.B., Ciurli, S., Montelione, G.T.

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Funding Organization	Location	Grant Number
University of Bologna	Italy	--

Revision History  

• Version 1.0: 2024-02-21
  Type: Initial release