9AX9

Crystal Structure of Enterovirus 68 3C Protease C147A Mutant with 3B3C peptide at 2.00 Angstroms

• PDB DOI: https://doi.org/10.2210/pdb9AX9/pdb

• Classification: VIRAL PROTEIN,HYDROLASE
• Organism(s): enterovirus D68
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): Yes 


• Deposited: 2024-03-06 Released: 2024-09-18 
• Deposition Author(s): Azzolino, V.N., Shaqra, A.M., Schiffer, C.A.
• 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: 2.00 Å
• R-Value Free: 0.228 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 

Starting Model: experimental

Literature

Elucidating the Substrate Envelope of Enterovirus 68-3C Protease: Structural Basis of Specificity and Potential Resistance

Azzolino, V.N., Shaqra, A.M., Ali, A., Kurt Yilmaz, N., Schiffer, C.A.

(2024) Viruses 16

• DOI: https://doi.org/10.3390/v16091419

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 40.77 kDa 
• Atom Count: 3,016 
• Modelled Residue Count: 368 
• Deposited Residue Count: 370 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protease 3C	A, B	182	enterovirus D68	Mutation(s): 1  EC: 3.4.22.29 (PDB Primary Data), 3.6.1.15 (PDB Primary Data), 3.4.22.28 (PDB Primary Data), 2.7.7.48 (PDB Primary Data)
UniProt
Find proteins for A0A2K8BQT2 (Human enterovirus D68) Explore A0A2K8BQT2  Go to UniProtKB:  A0A2K8BQT2

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
3B3C peptide	C	6	enterovirus D68	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.228 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.784	α = 90
b = 103.343	β = 110.8
c = 43.213	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
CrysalisPro	data collection
CrysalisPro	data reduction
CrysalisPro	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-18 
Deposition Author(s): Azzolino, V.N., Shaqra, A.M., Schiffer, C.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	1F30AI181515-01

Revision History  

• Version 1.0: 2024-09-18
  Type: Initial release