2XPX

Crystal structure of BHRF1:Bak BH3 complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.185 

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This is version 1.1 of the entry. See complete history. 


Literature

Structural Basis for Apoptosis Inhibition by Epstein-Barr Virus Bhrf1.

Kvansakul, M., Wei, A.H., Fletcher, J.I., Willis, S.N., Chen, L., Roberts, A.W., Huang, D.C.S., Colman, P.M.

(2010) PLoS Pathog 6: 1236

  • DOI: 10.1371/journal.ppat.1001236
  • Primary Citation of Related Structures:  
    2V6Q, 2WH6, 2XPX

  • PubMed Abstract: 

    • Epstein-Barr virus (EBV) is associated with human malignancies, especially those affecting the B cell compartment such as Burkitt lymphoma. The virally encoded homolog of the mammalian pro-survival protein Bcl-2, BHRF1 contributes to viral infectivity and lymphomagenesis ...

    Epstein-Barr virus (EBV) is associated with human malignancies, especially those affecting the B cell compartment such as Burkitt lymphoma. The virally encoded homolog of the mammalian pro-survival protein Bcl-2, BHRF1 contributes to viral infectivity and lymphomagenesis. In addition to the pro-apoptotic BH3-only protein Bim, its key target in lymphoid cells, BHRF1 also binds a selective sub-set of pro-apoptotic proteins (Bid, Puma, Bak) expressed by host cells. A consequence of BHRF1 expression is marked resistance to a range of cytotoxic agents and in particular, we show that its expression renders a mouse model of Burkitt lymphoma untreatable. As current small organic antagonists of Bcl-2 do not target BHRF1, the structures of it in complex with Bim or Bak shown here will be useful to guide efforts to target BHRF1 in EBV-associated malignancies, which are usually associated with poor clinical outcomes.

    Organizational Affiliation: 

    The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
APOPTOSIS REGULATOR BHRF1A173Human gammaherpesvirus 4Mutation(s): 0 
UniProt
Find proteins for P03182 (Epstein-Barr virus (strain B95-8))
Explore P03182 
Go to UniProtKB:  P03182
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP03182
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
BCL-2 HOMOLOGOUS ANTAGONIST/KILLERB26Homo sapiensMutation(s): 0 
Gene Names: BAK1, BAK, BCL2L7, CDN1
UniProt & NIH Common Fund Data Resources
Find proteins for Q16611 (Homo sapiens)
Explore Q16611 
Go to UniProtKB:  Q16611
PHAROS:  Q16611
GTEx:  ENSG00000030110 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ16611
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.185 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 62.387α = 90
b = 62.387β = 90
c = 93.729γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-01-26
    Type: Initial release
  • Version 1.1: 2011-12-28
    Changes: Database references, Version format compliance