1BFR

IRON STORAGE AND ELECTRON TRANSPORT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a monoclinic crystal from of cyctochrome b1 (Bacterioferritin) from E. coli.

Dautant, A.Meyer, J.B.Yariv, J.Precigoux, G.Sweet, R.M.Kalb, A.J.Frolow, F.

(1998) Acta Crystallogr.,Sect.D 54: 16-24


  • PubMed Abstract: 
  • Crystals of E. coli cytochrome b1, alias bacterioferritin, were grown fr om a low ionic strength solution. The resulting monoclniic P21 structure was solved by molecular replacement and refined using noncrystallographi c symmetries applied to the fun ...

    Crystals of E. coli cytochrome b1, alias bacterioferritin, were grown fr om a low ionic strength solution. The resulting monoclniic P21 structure was solved by molecular replacement and refined using noncrystallographi c symmetries applied to the fundamental unit, consisting of two protein subunits and a single haem. From the Patterson self-rotation results it was shown that the asymmetric unit of the monoclinic crystal consists of 12 such dimers and corresponds to a complete, nearly spherical, molecule of bacterioferritin (M4 = 450 kDa) of 432 point-group symmetry. It is thus the most symmetrical cytochrome. As previously determined for the tetragonal form, the haem is located in a special position on a local twofold axis of the dimer. A bimetal centre is also observed within the four-helix bundle of each monomer; a metal-binding site is located on the fourfold axis.


    Related Citations: 
    • Amino Acid Sequence of the Bacterioferritin (Cytochrome B1) of Escherichia Coli-K12
      Andrews, S.C.,Smith, J.M.,Guest, J.R.,Harrison, P.M.
      (1989) Biochem.Biophys.Res.Commun. 158: 489
    • Molecular Size and Symmetry of the Bacterioferritin of Escherichia Coli. X-Ray Crystallographic Characterization of Four Crystal Forms
      Smith, J.M.,Ford, G.C.,Harrison, P.M.,Yariv, J.,Kalb, A.J.
      (1989) J.Mol.Biol. 205: 465
    • Structure of a Unique Twofold Symmetric Haem-Binding Site
      Frolow, F.,Kalb, A.J.,Yariv, J.
      (1994) Nat.Struct.Mol.Biol. 1: 453
    • The Identity of Bacterioferritin and Cytochrome B1
      Yariv, J.
      (1983) Biochem.J. 211: 527
    • A Crystallographic Study of Haem Binding to Ferritin
      Precigoux, G.,Yariv, J.,Gallois, B.,Dautant, A.,Courseille, C.,Langlois D'Estaintot, B.
      (1994) Acta Crystallogr.,Sect.D 50: 739


    Organizational Affiliation

    Unité Biophysique Structurale, ERS133 CNRS, Université de Bordeaux 1, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
BACTERIOFERRITIN
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
158Escherichia coli (strain K12)Gene Names: bfr
EC: 1.16.3.1
Find proteins for P0ABD3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0ABD3
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
HEM
Query on HEM

Download SDF File 
Download CCD File 
B, D, F, H, J, L, N, P, R, T, V, X
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.94 Å
  • R-Value Work: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 118.700α = 90.00
b = 211.600β = 119.10
c = 123.300γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1996-06-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance