3E4G

Crystal structure of bovine coupling Factor B, G28E mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.96 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.143 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of bovine mitochondrial factor B at 0.96-A resolution.

Lee, J.K.Belogrudov, G.I.Stroud, R.M.

(2008) Proc.Natl.Acad.Sci.Usa 105: 13379-13384

  • DOI: 10.1073/pnas.0805689105
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Coupling factor B (FB) is a mitochondrial inner membrane polypeptide that facilitates the energy-driven catalysis of ATP synthesis in animal mitochondria by blocking a proton leak across the membrane. Here, we report the crystal structure of the bovi ...

    Coupling factor B (FB) is a mitochondrial inner membrane polypeptide that facilitates the energy-driven catalysis of ATP synthesis in animal mitochondria by blocking a proton leak across the membrane. Here, we report the crystal structure of the bovine mitochondrial FB mutant with Gly-3-Glu substitution determined at a resolution of 0.96 A and that of the WT polypeptide at a resolution of 2.9 A. The structure reveals an oblong, oval-shaped molecule with a unique globular N-terminal domain that is proposed to be the membrane anchor domain and the capping region to the C-terminal leucine-rich repeats domain. A short N-terminal alpha-helix, which extends away from the molecule's body, is suggestive of functioning as an anchor for FB to the matrix side of the mitochondrial inner membrane. Identification of a bound Mg(2+) ion reveals that FB is a metalloprotein. We also report the cocrystal structures of FB bound with phenylarsine oxide and Cd(2+), two known inhibitors of the FB coupling activity.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, University of California, San Francisco, CA 94158-2517, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATP synthase subunit s, mitochondrial
A
176Bos taurusMutation(s): 1 
Gene Names: ATP5S (ATPW)
Find proteins for P22027 (Bos taurus)
Go to Gene View: ATP5S
Go to UniProtKB:  P22027
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
TRS
Query on TRS

Download SDF File 
Download CCD File 
A
2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
TRIS BUFFER
C4 H12 N O3
LENZDBCJOHFCAS-UHFFFAOYSA-O
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.96 Å
  • R-Value Free: 0.164 
  • R-Value Work: 0.143 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 107.476α = 90.00
b = 50.010β = 109.37
c = 36.886γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
PHASERphasing
MOSFLMdata reduction
PDB_EXTRACTdata extraction
Blu-Icedata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-08-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance