1LXL

NMR STRUCTURE OF BCL-XL, AN INHIBITOR OF PROGRAMMED CELL DEATH, MINIMIZED AVERAGE STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

wwPDB Validation   3D Report Full Report

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This is version 1.4 of the entry. See complete history


Literature

X-ray and NMR structure of human Bcl-xL, an inhibitor of programmed cell death.

Muchmore, S.W.Sattler, M.Liang, H.Meadows, R.P.Harlan, J.E.Yoon, H.S.Nettesheim, D.Chang, B.S.Thompson, C.B.Wong, S.L.Ng, S.L.Fesik, S.W.

(1996) Nature 381: 335-341

  • DOI: https://doi.org/10.1038/381335a0
  • Primary Citation of Related Structures:  
    1LXL, 1MAZ

  • PubMed Abstract: 

    THE Bcl-2 family of proteins regulate programmed cell death by an unknown mechanism. Here we describe the crystal and solution structures of a Bcl-2 family member, Bcl-xL (ref. 2). The structures consist of two central, primarily hydrophobic alpha-helices, which are surrounded by amphipathic helices. A 60-residue loop connecting helices alpha1 and alpha2 was found to be flexible and non-essential for anti-apoptotic activity. The three functionally important Bcl-2 homology regions (BH1, BH2 and BH3) are in close spatial proximity and form an elongated hydrophobic cleft that may represent the binding site for other Bcl-2 family members. The arrangement of the alpha-helices in Bcl-xL is reminiscent of the membrane translocation domain of bacterial toxins, in particular diphtheria toxin and the colicins. The structural similarity may provide a clue to the mechanism of action of the Bcl-2 family of proteins.


  • Organizational Affiliation

    Protein Crystallography, Pharmaceutical Discovery Division, Abbott Laboratories, Abbott Park, Illinois 60064, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
BCL-XL221Homo sapiensMutation(s): 0 
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: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 1997-04-21
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Database references, Derived calculations, Other
  • Version 1.4: 2024-05-22
    Changes: Data collection