1AF3

RAT BCL-XL AN APOPTOSIS INHIBITORY PROTEIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of rat Bcl-xL. Implications for the function of the Bcl-2 protein family.

Aritomi, M.Kunishima, N.Inohara, N.Ishibashi, Y.Ohta, S.Morikawa, K.

(1997) J.Biol.Chem. 272: 27886-27892


  • PubMed Abstract: 
  • Bcl-xL is a member of the Bcl-2 protein family, which regulates apoptosis. Preparation of recombinant rat Bcl-xL yielded two forms, one deamidated at -Asn-Gly- sequences to produce isoaspartates and the other not deamidated. The crystal structures of ...

    Bcl-xL is a member of the Bcl-2 protein family, which regulates apoptosis. Preparation of recombinant rat Bcl-xL yielded two forms, one deamidated at -Asn-Gly- sequences to produce isoaspartates and the other not deamidated. The crystal structures of the two forms show that they both adopt an essentially identical backbone structure which resembles the fold of human Bcl-xL: three layers of two alpha-helices each, capped at one end by two short helices. Both forms have a long disordered region, which contains the potential deamidation sites. The molecular structure exhibits a low level of interhelical interactions, the presence of three cavities, and a notable hydrophobic cleft surrounded by walls rich in basic residues. These unique structural features may be favorable for its accommodation into membranes or for possible rearrangement to modulate homo-/heterodimerization. Homology modeling of Bcl-2 and Bax, based on the Bcl-xL structure, suggests that Bax has the strongest potential for membrane insertion. Furthermore, we found a possible interface for interaction with non-Bcl-2 family member proteins, such as CED-4 homologues.


    Organizational Affiliation

    Biomolecular Engineering Research Institute, 6-2-3 Furuedai, Suita-city, Osaka 565, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
APOPTOSIS REGULATOR BCL-X
A
196Rattus norvegicusMutation(s): 0 
Gene Names: Bcl2l1 (Bclx, Blc2l)
Find proteins for P53563 (Rattus norvegicus)
Go to UniProtKB:  P53563
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.5 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.222 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 64.050α = 90.00
b = 64.050β = 90.00
c = 112.270γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
MLPHAREphasing
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-07-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-04-04
    Type: Data collection