3QBR

BakBH3 in complex with sjA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Discovery and molecular characterization of a Bcl-2-regulated cell death pathway in schistosomes.

Lee, E.F.Clarke, O.B.Evangelista, M.Feng, Z.Speed, T.P.Tchoubrieva, E.B.Strasser, A.Kalinna, B.H.Colman, P.M.Fairlie, W.D.

(2011) Proc Natl Acad Sci U S A 108: 6999-7003

  • DOI: 10.1073/pnas.1100652108
  • Primary Citation of Related Structures:  
    3QBR

  • PubMed Abstract: 
  • Schistosomiasis is an infectious disease caused by parasites of the phylum platyhelminthe. Here, we describe the identification and characterization of a Bcl-2-regulated apoptosis pathway in Schistosoma japonicum and S. mansoni. Genomic, biochemical, ...

    Schistosomiasis is an infectious disease caused by parasites of the phylum platyhelminthe. Here, we describe the identification and characterization of a Bcl-2-regulated apoptosis pathway in Schistosoma japonicum and S. mansoni. Genomic, biochemical, and cell-based mechanistic studies provide evidence for a tripartite pathway, similar to that in humans including BH3-only proteins that are inhibited by prosurvival Bcl-2-like molecules, and Bax/Bak-like proteins that facilitate mitochondrial outer-membrane permeabilization. Because Bcl-2 proteins have been successfully targeted with "BH3 mimetic" drugs, particularly in the treatment of cancer, we investigated whether schistosome apoptosis pathways could provide targets for future antischistosomal drug discovery efforts. Accordingly, we showed that a schistosome prosurvival protein, sjA, binds ABT-737, a well-characterized BH3 mimetic. A crystal structure of sjA bound to a BH3 peptide provides direct evidence for the feasibility of developing BH3 mimetics to target Bcl-2 prosurvival proteins in schistosomes, suggesting an alternative application for this class of drugs beyond cancer treatment.


    Organizational Affiliation

    The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SJCHGC06286 proteinAX179Schistosoma japonicumMutation(s): 0 
Find proteins for Q5BWX6 (Schistosoma japonicum)
Explore Q5BWX6 
Go to UniProtKB:  Q5BWX6
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Bcl-2 homologous antagonist/killerBY34Homo sapiensMutation(s): 0 
Gene Names: BAK1BAKBCL2L7CDN1
Find proteins for Q16611 (Homo sapiens)
Explore Q16611 
Go to UniProtKB:  Q16611
NIH Common Fund Data Resources
PHAROS  Q16611
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NHE
Query on NHE

Download CCD File 
X
2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID
C8 H17 N O3 S
MKWKNSIESPFAQN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.171 
  • R-Value Observed: 0.178 
  • Space Group: I 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.625α = 90
b = 148.625β = 90
c = 148.625γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
SHELXCDphasing
SHELXEmodel building
PHENIXrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-04-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2013-06-26
    Changes: Database references
  • Version 1.3: 2017-11-08
    Changes: Refinement description