3ZZ6

Crystal structure of 3C protease of coxsackievirus B3 complexed with Michael receptor inhibitor 75

• PDB DOI: https://doi.org/10.2210/pdb3ZZ6/pdb

• Classification: HYDROLASE
• Organism(s): Coxsackievirus B3
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


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

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.285 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 

Starting Model: experimental

Literature

Peptidic Ab-Nonsaturated 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: 20.94 kDa 
• Atom Count: 1,477 
• Modelled Residue Count: 181 
• Deposited Residue Count: 184 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
POLYPROTEIN 3BCD	A	184	Coxsackievirus B3	Mutation(s): 0  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
G75	B [auth A]	ETHYL (4R)-4-({N-[(BENZYLOXY)CARBONYL]-L-PHENYLALANYL}AMINO)-5-[(3S)-2-OXOPYRROLIDIN-3-YL]PENTANOATE C28 H35 N3 O6 PIZHLOUXQJUQHF-VXNXHJTFSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.285 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 76.92	α = 90
b = 64.09	β = 116.63
c = 39.54	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: 2024-10-16
  Changes: Structure summary