Biological Assembly 1  

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 22785.82 
• Atom Count: 1260 
• Residue Count: 196 
• Unique protein chains: 2

4UF2

Deerpox virus DPV022 in complex with Bax BH3

• DOI: 10.2210/pdb4UF2/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Homo sapiens, Deerpox virus (strain Mule deer/United States/W-848-83/1983)
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2014-12-23 Released: 2015-08-05 
• Deposition Author(s): Burton, D.R., Kvansakul, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3 Å
• R-Value Free: 0.274 
• R-Value Work: 0.214 

Literature

Structural Basis of Deerpox Virus-Mediated Inhibition of Apoptosis.

Burton, D.R., Caria, S., Marshall, B., Barry, M., Kvansakul, M.

(2015) Acta Crystallogr.,Sect.D 71: 1593

• PubMed: 26249341 
• DOI: 10.1107/S1399004715009402
• Primary Citation of Related Structures:  
  4UF3, 4UF1


• PubMed Abstract: 
  

Apoptosis is a key innate defence mechanism to eliminate virally infected cells. To counteract premature host-cell apoptosis, poxviruses have evolved numerous molecular strategies, including the use of Bcl-2 proteins, to ensure their own survival. Here, it is reported that the Deerpox virus inhibitor of apoptosis, DPV022, only engages a highly restricted set of death-inducing Bcl-2 proteins, including Bim, Bax and Bak, with modest affinities. Structural analysis reveals that DPV022 adopts a Bcl-2 fold with a dimeric domain-swapped topology and binds pro-death Bcl-2 proteins via two conserved ligand-binding grooves found on opposite sides of the dimer. Structures of DPV022 bound to Bim, Bak and Bax BH3 domains reveal that a partial obstruction of the binding groove is likely to be responsible for the modest affinities of DPV022 for BH3 domains. These findings reveal that domain-swapped dimeric Bcl-2 folds are not unusual and may be found more widely in viruses. Furthermore, the modest affinities of DPV022 for pro-death Bcl-2 proteins suggest that two distinct classes of anti-apoptotic viral Bcl-2 proteins exist: those that are monomeric and tightly bind a range of death-inducing Bcl-2 proteins, and others such as DPV022 that are dimeric and only bind a very limited number of death-inducing Bcl-2 proteins with modest affinities.

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Organizational Affiliation: 

Department of Biochemistry, La Trobe University, Melbourne, VIC 3058, Australia.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
ANTIAPOPTOTIC MEMBRANE PROTEIN	A	168	Deerpox virus (strain Mule deer/United States/W-848-83/1983)	Mutation(s): 0  Gene Names: DPV022
Find proteins for Q08FX8 (Deerpox virus (strain Mule deer/United States/W-848-83/1983)) Go to UniProtKB:  Q08FX8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
APOPTOSIS REGULATOR BAX	B	28	Homo sapiens	Mutation(s): 0  Gene Names: BAX (BCL2L4)
Find proteins for Q07812 (Homo sapiens) Go to Gene View: BAX Go to UniProtKB:  Q07812

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3 Å
• R-Value Free: 0.274 
• R-Value Work: 0.214 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 92.481	α = 90.00
b = 92.481	β = 90.00
c = 45.529	γ = 90.00

Software Package:

Software Name	Purpose
Aimless	data scaling
PHENIX	refinement
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-12-23 
• Released Date: 2015-08-05 
• Deposition Author(s): Burton, D.R., Kvansakul, M.

Revision History 

• Version 1.0: 2015-08-05
  Type: Initial release
• Version 1.1: 2015-08-12
  Type: Database references
• Version 1.2: 2015-08-19
  Type: Database references