1MAZ

X-RAY STRUCTURE OF BCL-XL, AN INHIBITOR OF PROGRAMMED CELL DEATH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 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: 10.1038/381335a0
  • Primary Citation of Related Structures:  

  • 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-he ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Bcl-2-like protein 1
A
221Homo sapiensMutation(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: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.192 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 63.500α = 90.00
b = 63.500β = 90.00
c = 110.500γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
HKLdata reduction
X-PLORphasing
HKLdata collection
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-04-21
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance