3ZZD

Crystal structure of 3C protease mutant (T68A and N126Y) of coxsackievirus B3 complexed with alpha, beta-unsaturated ethyl ester inhibitor 85

• PDB DOI: https://doi.org/10.2210/pdb3ZZD/pdb

• Classification: HYDROLASE
• Organism(s): Coxsackievirus B3
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2011-08-31 Released: 2012-09-19 
• Deposition Author(s): Tan, J., Anand, K., Mesters, J.R., Hilgenfeld, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.257 
• R-Value Work: 0.195 
• R-Value Observed: 0.198 

Starting Model: experimental

Literature

Peptidic Alpha, Beta-Unsaturated Ethyl Esters as Inhibitors of the 3C Protease of Coxsackie Virus B3: Crystal Structures, Antiviral Activities, and Resistance Mutations

Tan, J., Anand, K., Mesters, J.R., Hilgenfeld, 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: 20.97 kDa 
• Atom Count: 1,511 
• Modelled Residue Count: 180 
• Deposited Residue Count: 183 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
3C PROTEINASE	A	183	Coxsackievirus B3	Mutation(s): 2  EC: 3.4.22.28
UniProt
Find proteins for Q5UEA2 (Coxsackievirus B3) Explore Q5UEA2  Go to UniProtKB:  Q5UEA2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
G85	B [auth A]	N-[(benzyloxy)carbonyl]-O-tert-butyl-L-seryl-N-{(2R)-5-ethoxy-5-oxo-1-[(3S)-2-oxopyrrolidin-3-yl]pentan-2-yl}-L-phenylalaninamide C35 H48 N4 O8 JRBUWNJDFCUWEM-CRNKYVSFSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.257 
• R-Value Work: 0.195 
• R-Value Observed: 0.198 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.87	α = 90
b = 69.37	β = 90
c = 75.71	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
iMOSFLM	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-09-19 
Deposition Author(s): Tan, J., Anand, K., Mesters, J.R., Hilgenfeld, R.

Revision History  

• Version 1.0: 2012-09-19
  Type: Initial release
  
• Version 1.1: 2019-05-08
  Changes: Data collection, Derived calculations, Experimental preparation, Other
• Version 1.2: 2024-05-01
  Changes: Data collection, Database references, Derived calculations, Other, Refinement description
• Version 1.3: 2024-10-09
  Changes: Structure summary