Macromolecule Content

• Total Structure Weight: 20398.60 
• Atom Count: 1436 
• Residue Count: 179 
• Unique protein chains: 2

2PON

Solution structure of the Bcl-xL/Beclin-1 complex

• DOI: 10.2210/pdb2PON/pdb

• Classification: APOPTOSIS INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2007-04-27 Released: 2007-09-04 
• Deposition Author(s): Feng, W., Huang, S., Wu, H., Zhang, M.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 

Literature

Molecular Basis of Bcl-xL's Target Recognition Versatility Revealed by the Structure of Bcl-xL in Complex with the BH3 Domain of Beclin-1.

Feng, W., Huang, S., Wu, H., Zhang, M.

(2007) J.Mol.Biol. 372: 223-235

• PubMed: 17659302 
• DOI: 10.1016/j.jmb.2007.06.069


• PubMed Abstract: 
  

Beclin-1, originally identified as a Bcl-2 binding protein, is an evolutionarily conserved protein required for autophagy. The direct interaction between Beclin-1 and Bcl-2 or Bcl-xL provides a potential convergence point for apoptosis and autophagy, two programmed cell death processes. Given the functional significance of the interaction between Beclin-1 and Bcl-2/Bcl-xL, we performed detailed biochemical and structural characterizations of this interaction. We demonstrated that the Bcl-xL-binding domain of Beclin-1 contains a BH3 domain. Therefore, Beclin-1 is a new member of the BH3-only family proteins. The structure of Bcl-xL in complex with the Beclin-1 BH3 domain was determined at high resolution by NMR spectroscopy. Although similar to other known BH3 domains, the Beclin-1 BH3 domain displays its own distinct features in the complex with Bcl-xL. Systematic analysis of all known Bcl-xL/BH3 domain complexes helped us to identify the molecular basis underlying the capacity of Bcl-xL to recognize diverse target sequences.

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Organizational Affiliation: 

Department of Biochemistry, Molecular Neuroscience Center, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Beclin-1	A	23	Homo sapiens	Mutation(s): 0  Gene Names: BECN1 (GT197)
Find proteins for Q14457 (Homo sapiens) Go to Gene View: BECN1 Go to UniProtKB:  Q14457

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Apoptosis regulator Bcl-X	B	156	Homo sapiens	Mutation(s): 0  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: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 20 
• Selection Criteria: structures with the lowest energy 
• Olderado: 2PON Olderado

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-04-27 
• Released Date: 2007-09-04 
• Deposition Author(s): Feng, W., Huang, S., Wu, H., Zhang, M.

Revision History 

• Version 1.0: 2007-09-04
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance