6NOZ

X-ray structure of PEDV papain-like protease 2

• PDB DOI: https://doi.org/10.2210/pdb6NOZ/pdb

• Classification: HYDROLASE
• Organism(s): Porcine epidemic diarrhea virus
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2019-01-16 Released: 2020-01-22 
• Deposition Author(s): Clasman, J.C., Mesecar, A.D., Center for Structural Genomics of Infectious Diseases (CSGID)
• Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.193 
• R-Value Work: 0.145 
• R-Value Observed: 0.149 

Literature

Evaluating ubiquitin specificity of papain-like protease 2 from alphacoronaviruses FIPV and PEDV using structure-guided engineering

Clasman, J.C., Mesecar, A.D.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 27.44 kDa 
• Atom Count: 2,318 
• Modelled Residue Count: 248 
• Deposited Residue Count: 248 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Polyprotein	A	248	Porcine epidemic diarrhea virus	Mutation(s): 0
UniProt
Find proteins for W8QLX4 (Porcine epidemic diarrhea virus) Explore W8QLX4  Go to UniProtKB:  W8QLX4

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	C [auth A], D [auth A], E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSO	A	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.193 
• R-Value Work: 0.145 
• R-Value Observed: 0.149 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.722	α = 90
b = 65.672	β = 90
c = 170.038	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2020-01-22 
Deposition Author(s): Clasman, J.C., Mesecar, A.D., Center for Structural Genomics of Infectious Diseases (CSGID)

---

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	AI085089

Revision History  

• Version 1.0: 2020-01-22
  Type: Initial release
  
• Version 1.1: 2023-10-11
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2023-11-15
  Changes: Data collection