8HQH

Crystal structure of SARS-Cov-2 main protease M49I mutant in complex with inhibitor YH-53

• PDB DOI: https://doi.org/10.2210/pdb8HQH/pdb

• Classification: VIRAL PROTEIN/INHIBITOR
• Organism(s): Severe acute respiratory syndrome coronavirus 2
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2022-12-13 Released: 2023-12-20 
• Deposition Author(s): Zou, X.F., Zhang, J., Li, J.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.58 Å
• R-Value Free: 0.227 
• R-Value Work: 0.212 
• R-Value Observed: 0.212 

Starting Model: experimental

Literature

Crystal structure of SARS-Cov-2 main protease M49I mutant in complex with inhibitor YH-53

Zou, X.F., Zhang, J., Li, 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: 67.41 kDa 
• Atom Count: 4,688 
• Modelled Residue Count: 596 
• Deposited Residue Count: 598 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C-like proteinase nsp5	A, B	299	Severe acute respiratory syndrome coronavirus 2	Mutation(s): 1  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
HUR (Subject of Investigation/LOI)	C [auth A], D [auth B]	N-[(2S)-1-[[(2S)-1-(1,3-benzothiazol-2-yl)-1-oxidanylidene-3-[(3S)-2-oxidanylidenepyrrolidin-3-yl]propan-2-yl]amino]-4-methyl-1-oxidanylidene-pentan-2-yl]-4-methoxy-1H-indole-2-carboxamide C30 H33 N5 O5 S JBLLRCOZJMVOAE-HSQYWUDLSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.58 Å
• R-Value Free: 0.227 
• R-Value Work: 0.212 
• R-Value Observed: 0.212 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 55.418	α = 90
b = 99.137	β = 108.571
c = 59.668	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-12-20 
Deposition Author(s): Zou, X.F., Zhang, J., Li, J.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-12-20
  Type: Initial release