2VOF

Structure of mouse A1 bound to the Puma BH3-domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Plasticity Underpins Promiscuous Binding of the Prosurvival Protein A1.

Smits, C.Czabotar, P.E.Hinds, M.G.Day, C.L.

(2008) Structure 16: 818

  • DOI: 10.1016/j.str.2008.02.009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Apoptotic pathways are regulated by protein-protein interactions. Interaction of the BH3 domains of proapoptotic Bcl-2 family proteins with the hydrophobic groove of prosurvival proteins is critical. Whereas some BH3 domains bind in a promiscuous man ...

    Apoptotic pathways are regulated by protein-protein interactions. Interaction of the BH3 domains of proapoptotic Bcl-2 family proteins with the hydrophobic groove of prosurvival proteins is critical. Whereas some BH3 domains bind in a promiscuous manner, others exhibit considerable selectivity and the sequence characteristics that distinguish these activities are unclear. In this study, crystal structures of complexes between the prosurvival protein A1 and the BH3 domains from Puma, Bmf, Bak, and Bid have been solved. The structure of A1 is similar to that of other prosurvival proteins, although features, such as an acidic patch in the binding groove, may allow specific therapeutic modulation of apoptosis. Significant conformational plasticity was observed in the intermolecular interactions and these differences explain some of the variation in affinity. This study, in combination with published data, suggests that interactions between conserved residues demarcate optimal binding.


    Organizational Affiliation

    Biochemistry Department, University of Otago, Dunedin 9054, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BCL-2-RELATED PROTEIN A1
A, C
157Mus musculusMutations: S118C, K109P
Gene Names: Bcl2a1 (A1, Bcl2a1a, Bfl1)
Find proteins for Q07440 (Mus musculus)
Go to UniProtKB:  Q07440
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
BCL-2-BINDING COMPONENT 3
B, D
26Mus musculusMutations: I15M
Gene Names: Bbc3 (Puma)
Find proteins for Q99ML1 (Mus musculus)
Go to UniProtKB:  Q99ML1
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
A, C
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
A, C
L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.183 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 49.640α = 90.00
b = 60.683β = 109.53
c = 59.986γ = 90.00
Software Package:
Software NamePurpose
MLPHAREphasing
MOSFLMdata reduction
SHELXphasing
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-03-04
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance