Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 22102.26 
• Atom Count: 1157 
• Residue Count: 197 
• Unique protein chains: 1

3IHD

Crystal structure of mouse Bcl-xl mutant (Y101A) at pH 5.0

• DOI: 10.2210/pdb3IHD/pdb

• Classification: APOPTOSIS
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): 1 


• Deposited: 2009-07-30 Released: 2010-04-14 
• Deposition Author(s): Priyadarshi, A., Hwang, K.Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.210 
• R-Value Work: 0.171 

Literature

Structural insights into mouse anti-apoptotic Bcl-xl reveal affinity for Beclin 1 and gossypol.

Priyadarshi, A., Roy, A., Kim, K.S., Kim, E.E., Hwang, K.Y.

(2010) Biochem.Biophys.Res.Commun. 394: 515-521

• PubMed: 20206602 
• DOI: 10.1016/j.bbrc.2010.03.002
• Primary Citation of Related Structures:  
  3ILC, 3ILB, 3IIH, 3IIG, 3IHF, 3IHE, 3IHC


• PubMed Abstract: 
  

This study reports the crystal structures of Bcl-xl wild type and three Bcl-xl mutants (Y101A, F105A, and R139A) with amino acid substitutions in the hydrophobic groove of the Bcl-xl BH3 domain. An additional 12 ordered residues were observed in a highly flexible loop between the alpha1 and alpha2 helices, and were recognized as an important deamidation site for the regulation of apoptosis. The autophagy-effector protein, Beclin 1, contains a novel BH3 domain (residues 101-125), which binds to the surface cleft of Bcl-xl, as confirmed by nuclear magnetic resonance (NMR) spectroscopy and analytical gel-filtration results. Gossypol, a potent inhibitor of Bcl-xl, had a K(d) value of 0.9 microM. In addition, the structural and biochemical analysis of five Bcl-xl substitution mutants will provide structural insights into the design and development of anti-cancer drugs.

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Organizational Affiliation: 

Biomedical Research Center, KIST, Republic of Korea.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Bcl-2-like protein 1	A	197	Mus musculus	Mutation(s): 1  Gene Names: Bcl2l1 (Bcl2l, Bclx)
Find proteins for Q64373 (Mus musculus) Go to UniProtKB:  Q64373

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.88 Å
• R-Value Free: 0.210 
• R-Value Work: 0.171 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 62.811	α = 90.00
b = 62.811	β = 90.00
c = 111.137	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
REFMAC	refinement
HKL-2000	data collection
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2009-07-30 
• Released Date: 2010-04-14 
• Deposition Author(s): Priyadarshi, A., Hwang, K.Y.

Revision History 

• Version 1.0: 2010-04-14
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Version format compliance
• Version 1.2: 2013-11-20
  Type: Database references