8TQT

MPI52 bound to Mpro of SARS-CoV-2

• PDB DOI: https://doi.org/10.2210/pdb8TQT/pdb

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


• Deposited: 2023-08-08 Released: 2024-08-14 
• Deposition Author(s): Blankenship, L.R., Liu, W.R.
• Funding Organization(s): Welch Foundation, National Institutes of Health/National Cancer Institute (NIH/NCI)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.239 
• R-Value Work: 0.223 
• R-Value Observed: 0.223 

Starting Model: experimental

Literature

MPI52 bound to SARS-CoV-2 Mpro

Blankenship, L.R., Liu, W.R.

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)

Macromolecule Content

• Total Structure Weight: 34.34 kDa 
• Atom Count: 2,396 
• Modelled Residue Count: 306 
• 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): 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

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
K2X (Subject of Investigation/LOI)	B [auth A]	(3-chlorophenyl)methyl [(2S)-3-cyclohexyl-1-({(1S,2S)-1-hydroxy-3-[(3S)-2-oxopyrrolidin-3-yl]-1-sulfanylpropan-2-yl}amino)-1-oxopropan-2-yl]carbamate C24 H34 Cl N3 O5 S JHCCETMXTYSPGK-UDSSINMLSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.65 Å
• R-Value Free: 0.239 
• R-Value Work: 0.223 
• R-Value Observed: 0.223 
• Space Group: I 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.34	α = 90
b = 80.76	β = 97.198
c = 86.144	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
PROTEUM PLUS	data reduction
Aimless	data scaling
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-08-14 
Deposition Author(s): Blankenship, L.R., Liu, W.R.

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Funding Organization	Location	Grant Number
Welch Foundation	United States	A-1715
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	R35GM145351

Revision History  

• Version 1.0: 2024-08-14
  Type: Initial release