3OQ3

Structural Basis of Type-I Interferon Sequestration by a Poxvirus Decoy Receptor

• PDB DOI: https://doi.org/10.2210/pdb3OQ3/pdb

• Classification: CYTOKINE/VIRAL PROTEIN
• Organism(s): Mus musculus, Ectromelia virus Moscow
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-09-02 Released: 2011-05-18 
• Deposition Author(s): Fremont, D.H., Lee, C.A., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.235 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.203 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Starting Model: experimental

Literature

Structural Basis of Type-I Interferon Sequestration by a Poxvirus Decoy Receptor

Fremont, D.H., Lee, C.A., Center for Structural Genomics of Infectious Diseases (CSGID)

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 57.56 kDa 
• Atom Count: 4,391 
• Modelled Residue Count: 495 
• Deposited Residue Count: 495 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Interferon alpha-5	A	166	Mus musculus	Mutation(s): 0  Gene Names: Ifna5
UniProt
Find proteins for P07349 (Mus musculus) Explore P07349  Go to UniProtKB:  P07349

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
IFN-alpha/beta binding protein C12R	B	329	Ectromelia virus Moscow	Mutation(s): 0  Gene Names: C12R, EVM166
UniProt
Find proteins for Q9JFS5 (Ectromelia virus (strain Moscow)) Explore Q9JFS5  Go to UniProtKB:  Q9JFS5

Small Molecules

Ligands 5 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	K [auth B], L [auth B]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N
ZN	C [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
EDO	E [auth A], F [auth A], I [auth B], J [auth B]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
ACT	G [auth B], H [auth B]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.235 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.203 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.84	α = 90
b = 75.9	β = 90
c = 182.73	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data processing
PHENIX	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
d*TREK	data reduction
d*TREK	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-05-18 
Deposition Author(s): Fremont, D.H., Lee, C.A., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2011-05-18
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2024-10-16
  Changes: Structure summary