8EHK

Crystal Structure of SARS-CoV-2 Main Protease (Mpro) T135I Mutant

• PDB DOI: https://doi.org/10.2210/pdb8EHK/pdb

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


• Deposited: 2022-09-14 Released: 2022-09-28 
• Deposition Author(s): Lewandowski, E.M., Hu, Y., Tan, H., Wang, J., Chen, Y.
• 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: 2.18 Å
• R-Value Free: 0.233 
• R-Value Work: 0.178 
• R-Value Observed: 0.181 

Literature

Crystal Structure of SARS-CoV-2 Main Protease (Mpro) T135I Mutant

Lewandowski, E.M., Hu, Y., Tan, H., Wang, J., Chen, Y.

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: 33.84 kDa 
• Atom Count: 2,472 
• 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 nsp5	A	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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.18 Å
• R-Value Free: 0.233 
• R-Value Work: 0.178 
• R-Value Observed: 0.181 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 113.83	α = 90
b = 53.159	β = 102.4
c = 44.842	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-09-28 
Deposition Author(s): Lewandowski, E.M., Hu, Y., Tan, H., Wang, J., Chen, Y.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	AI158775

Revision History  

• Version 1.0: 2022-09-28
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Refinement description