1O0L | pdb_00001o0l

THE STRUCTURE OF BCL-W REVEALS A ROLE FOR THE C-TERMINAL RESIDUES IN MODULATING BIOLOGICAL ACTIVITY

• PDB DOI: https://doi.org/10.2210/pdb1O0L/pdb

• Classification: APOPTOSIS
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 
• Membrane Protein: Yes  OPM


• Deposited: 2003-02-22 Released: 2003-04-01 
• Deposition Author(s): Hinds, M.G., Lackmann, M., Skea, G.L., Harrison, P.J., Huang, D.C.S., Day, C.L.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 256 
• Conformers Submitted: 20 
• Selection Criteria: structures with acceptable covalent geometry, structures with the least restraint violations, structures with the lowest energy, target function 

Literature

The structure of Bcl-w reveals a role for the C-terminal residues in modulating biological activity

Hinds, M.G., Lackmann, M., Skea, G.L., Harrison, P.J., Huang, D.C.S., Day, C.L.

(2003) EMBO J 22: 1497-1507

• PubMed: 12660157 
• DOI: https://doi.org/10.1093/emboj/cdg144
• Primary Citation Related Structures: 
  1O0L


• PubMed Abstract: 
  

  Pro-survival Bcl-2-related proteins, critical regulators of apoptosis, contain a hydrophobic groove targeted for binding by the BH3 domain of the pro-apoptotic BH3-only proteins. The solution structure of the pro-survival protein Bcl-w, presented here, reveals that the binding groove is not freely accessible as predicted by previous structures of pro-survival Bcl-2-like molecules. Unexpectedly, the groove appears to be occluded by the C-terminal residues. Binding and kinetic data suggest that the C-terminal residues of Bcl-w and Bcl-x(L) modulate pro-survival activity by regulating ligand access to the groove. Binding of the BH3-only proteins, critical for cell death initiation, is likely to displace the hydrophobic C-terminal region of Bcl-w and Bcl-x(L). Moreover, Bcl-w does not act only by sequestering the BH3-only proteins. There fore, pro-survival Bcl-2-like molecules probably control the activation of downstream effectors by a mechanism that remains to be elucidated.

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Organizational Affiliation: 
• The Walter and Eliza Hall Institute of Medical Research, Melbourne, Victoria 3050, Australia.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 20.25 kDa 
• Atom Count: 1,428 
• Modeled Residue Count: 188 
• Deposited Residue Count: 188 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Apoptosis regulator Bcl-W	A	188	Homo sapiens	Mutation(s): 1  Gene Names: BCL2L2 OR BCLW OR KIAA0271 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q92843 (Homo sapiens) Explore Q92843  Go to UniProtKB:  Q92843
PHAROS:  Q92843 GTEx:  ENSG00000129473 ENSG00000258643

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 256 
• Conformers Submitted: 20 
• Selection Criteria: structures with acceptable covalent geometry, structures with the least restraint violations, structures with the lowest energy, target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-04-01 
Deposition Author(s): Hinds, M.G., Lackmann, M., Skea, G.L., Harrison, P.J., Huang, D.C.S., Day, C.L.

Revision History  

• Version 1.0: 2003-04-01
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-10-27
  Changes: Data collection, Database references, Derived calculations
• Version 1.4: 2024-05-22
  Changes: Data collection