1R2I

Human Bcl-XL containing a Phe to Leu mutation at position 146


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.208 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Bcl-XL mutations suppress cellular sensitivity to antimycin A.

Manion, M.K.O'Neill, J.W.Giedt, C.D.Kim, K.M.Zhang, K.Y.Hockenbery, D.M.

(2004) J Biol Chem 279: 2159-2165

  • DOI: https://doi.org/10.1074/jbc.M306021200
  • Primary Citation of Related Structures:  
    1R2D, 1R2E, 1R2G, 1R2H, 1R2I

  • PubMed Abstract: 

    Cells expressing high levels of the BCL-X(L) anti-apoptotic protein are preferentially killed by the mitochondrial inhibitor antimycin A (AA). Computational modeling predicts a binding site for AA in the extended hydrophobic groove on BCL-X(L), previously identified as an interface for dimerization to BAX and related proapoptotic proteins. Here, we identify BCL-X(L) hydrophobic groove mutants with normal cellular anti-apoptotic function but suppressed sensitivity to AA. The LD(50) of AA for cells expressing BCL-X(L) mutants directly correlates with the measured in vitro dissociation constants for AA binding. These results indicate that BCL-X(L) is a principal target mediating AA cytotoxicity.


  • Organizational Affiliation

    Divisions of Human Biology and Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Apoptosis regulator Bcl-X218Homo sapiensMutation(s): 1 
Gene Names: BCL-XL
UniProt & NIH Common Fund Data Resources
Find proteins for Q07817 (Homo sapiens)
Explore Q07817 
Go to UniProtKB:  Q07817
PHAROS:  Q07817
GTEx:  ENSG00000171552 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ07817
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.208 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.187α = 90
b = 63.187β = 90
c = 109.874γ = 90
Software Package:
Software NamePurpose
CNSrefinement
SCALEPACKdata scaling
EPMRphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-02-03
    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: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2021-10-27
    Changes: Database references
  • Version 1.5: 2023-08-23
    Changes: Data collection, Refinement description