Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 24590.98 
• Atom Count: 1156 
• Residue Count: 218 
• Unique protein chains: 1

1R2E

Human Bcl-XL containing a Glu to Leu mutation at position 92

• DOI: 10.2210/pdb1R2E/pdb

• Classification: APOPTOSIS
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 1 


• Deposited: 2003-09-26 Released: 2004-02-03 
• Deposition Author(s): O'Neill, J.W., Manion, M.K., Giedt, C.D., Kim, K.M., Zhang, K.Y., Hockenbery, D.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.1 Å
• R-Value Free: 0.239 
• R-Value Work: 0.212 

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

• PubMed: 14534311 
• DOI: 10.1074/jbc.M306021200
• Primary Citation of Related Structures:  
  1R2I, 1R2H, 1R2G, 1R2D


• 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Apoptosis regulator Bcl-X	A	218	Homo sapiens	Mutation(s): 1  Gene Names: BCL2L1 (BCL2L, BCLX)
Find proteins for Q07817 (Homo sapiens) Go to Gene View: BCL2L1 Go to UniProtKB:  Q07817

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.1 Å
• R-Value Free: 0.239 
• R-Value Work: 0.212 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 63.389	α = 90.00
b = 63.389	β = 90.00
c = 109.286	γ = 90.00

Software Package:

Software Name	Purpose
CNS	refinement
SCALEPACK	data scaling
EPMR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-09-26 
• Released Date: 2004-02-03 
• Deposition Author(s): O'Neill, J.W., Manion, M.K., Giedt, C.D., Kim, K.M., Zhang, K.Y., Hockenbery, D.M.

Revision History 

• Version 1.0: 2004-02-03
  Type: Initial release
• Version 1.1: 2008-04-29
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2017-10-11
  Type: Refinement description