4DDP

crystal structure of Beclin 1 evolutionarily conserved domain(ECD)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.547 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.175 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structure and biochemical analyses reveal Beclin 1 as a novel membrane binding protein

Huang, W.Choi, W.Hu, W.Mi, N.Guo, Q.Ma, M.Liu, M.Tian, Y.Lu, P.Wang, F.L.Deng, H.Liu, L.Gao, N.Yu, L.Shi, Y.

(2012) Cell Res. --: --

  • DOI: 10.1038/cr.2012.24

  • PubMed Abstract: 
  • The Beclin 1 gene is a haplo-insufficient tumor suppressor and plays an essential role in autophagy. However, the molecular mechanism by which Beclin 1 functions remains largely unknown. Here we report the crystal structure of the evolutionarily cons ...

    The Beclin 1 gene is a haplo-insufficient tumor suppressor and plays an essential role in autophagy. However, the molecular mechanism by which Beclin 1 functions remains largely unknown. Here we report the crystal structure of the evolutionarily conserved domain (ECD) of Beclin 1 at 1.6 Å resolution. Beclin 1 ECD exhibits a previously unreported fold, with three structural repeats arranged symmetrically around a central axis. Beclin 1 ECD defines a novel class of membrane-binding domain, with a strong preference for lipid membrane enriched with cardiolipin. The tip of a surface loop in Beclin 1 ECD, comprising three aromatic amino acids, acts as a hydrophobic finger to associate with lipid membrane, consequently resulting in the deformation of membrane and liposomes. Mutation of these aromatic residues rendered Beclin 1 unable to stably associate with lipid membrane in vitro and unable to fully rescue autophagy in Beclin 1-knockdown cells in vivo. These observations form an important framework for deciphering the biological functions of Beclin 1.


    Organizational Affiliation

    Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University, Beijing 100084, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Beclin-1
A
210Homo sapiensMutation(s): 0 
Gene Names: BECN1 (GT197)
Find proteins for Q14457 (Homo sapiens)
Go to Gene View: BECN1
Go to UniProtKB:  Q14457
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.547 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.175 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 80.746α = 90.00
b = 33.563β = 113.49
c = 74.765γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
CBASSdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-02-22
    Type: Initial release