6XOA

The crystal structure of 3CL MainPro of SARS-CoV-2 with C145S mutation

• PDB DOI: https://doi.org/10.2210/pdb6XOA/pdb

• Classification: HYDROLASE
• Organism(s): Severe acute respiratory syndrome coronavirus 2
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2020-07-06 Released: 2020-07-15 
• Deposition Author(s): Tan, K., Maltseva, N.I., Welk, L.F., Jedrzejczak, R.P., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.251 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 

Starting Model: experimental

Literature

The crystal structure of 3CL MainPro of SARS-CoV-2 with C145S mutation

Tan, K., Maltseva, N.I., Welk, L.F., Jedrzejczak, R.P., Joachimiak, A.

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 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 135.42 kDa 
• Atom Count: 9,535 
• Modelled Residue Count: 1,224 
• Deposited Residue Count: 1,224 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase	A, B, C, D	306	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 1  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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	E [auth A], F [auth C], G [auth D]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.251 
• R-Value Work: 0.205 
• R-Value Observed: 0.208 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.914	α = 77.93
b = 67.85	β = 89.55
c = 77.886	γ = 72.9

Software Package:

Software Name	Purpose
PHENIX	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	phasing
HKL-3000	data scaling

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-07-15 
Deposition Author(s): Tan, K., Maltseva, N.I., Welk, L.F., Jedrzejczak, R.P., Joachimiak, A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	HHSN272201 700060C

Revision History  

• Version 1.0: 2020-07-15
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Database references, Refinement description