1IQZ

OXIDIZED [4Fe-4S] FERREDOXIN FROM BACILLUS THERMOPROTEOLYTICUS (FORM I)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.92 Å
  • R-Value Free: 0.113 
  • R-Value Work: 0.097 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Atomic resolution structures of oxidized [4Fe-4S] ferredoxin from Bacillus thermoproteolyticus in two crystal forms: systematic distortion of [4Fe-4S] cluster in the protein.

Fukuyama, K.Okada, T.Kakuta, Y.Takahashi, Y.

(2002) J.Mol.Biol. 315: 1155-1166

  • DOI: 10.1006/jmbi.2001.5292
  • Primary Citation of Related Structures:  1IR0

  • PubMed Abstract: 
  • Diffraction data of two crystal forms (forms I and II) of [4Fe-4S] ferredoxin from Bacillus thermoproteolyticus have been collected to 0.92 A and 1.00 A resolutions, respectively, at 100 K using synchrotron radiation. Anisotropic temperature factors ...

    Diffraction data of two crystal forms (forms I and II) of [4Fe-4S] ferredoxin from Bacillus thermoproteolyticus have been collected to 0.92 A and 1.00 A resolutions, respectively, at 100 K using synchrotron radiation. Anisotropic temperature factors were introduced for all non-hydrogen atoms in the refinement with SHELX-97, in which stereochemical restraints were applied to the protein chain but not to the [4Fe-4S] cluster. The final crystallographic R-factors are 9.8 % for 7.0-0.92 A resolution data of the form I and 11.2 % for the 13.3-1.0 A resolution data of the form II. Many hydrogen atoms as well as multiple conformations for several side-chains have been identified. The present refinement has revised the conformations of several peptide bonds and side-chains assigned previously at 2.3 A resolution; the largest correction was that the main-chain of Pro1 and the side-chain of Lys2 were changed by rotating the C(alpha)-C bond of Lys2. Although the overall structures in the two crystal forms are very similar, conformational differences are observed in the two residues at the middle (Glu29 and Asp30) and the C-terminal residues, which have large temperature factors. The [4Fe-4S] cluster is a distorted cube with non-planar rhombic faces. Slight but significant compression of the four Fe-S bonds along one direction is observed in both crystal forms, and results in the D(2d) symmetry of the cluster. The compressed direction of the cluster relative to the protein is conserved in the two crystal forms and consistent with that in one of the clusters in Clostridium acidurici ferredoxin.


    Related Citations: 
    • Structure of [4Fe-4S] ferredoxin from Bacillus thermoproteolyticus refined at 2.3 A resolution. Structural comparisons of bacterial ferredoxins.
      Fukuyama, K.,Matsubara, H.,Tsukihara, T.,Katsube, Y.
      (1989) J.Mol.Biol. 210: 383
    • Tertiary structure of Bacillus thermoproteolyticus [4Fe-4S] ferredoxin. Evolutionary implications for bacterial ferredoxins.
      Fukuyama, K.,Nagahara, Y.,Tsukihara, T.,Katsube, Y.,Hase, T.,Matsubara, H.
      (1988) J.Mol.Biol. 199: 183


    Organizational Affiliation

    Department of Biology Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan. fukuyama@bio.sci.osaka-u.ac.jp




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ferredoxin
A
81Bacillus thermoproteolyticusN/A
Find proteins for P10245 (Bacillus thermoproteolyticus)
Go to UniProtKB:  P10245
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SF4
Query on SF4

Download SDF File 
Download CCD File 
A
IRON/SULFUR CLUSTER
Fe4 S4
LJBDFODJNLIPKO-VKOJMFJBAC
 Ligand Interaction
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 0.92 Å
  • R-Value Free: 0.113 
  • R-Value Work: 0.097 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 69.700α = 90.00
b = 37.450β = 105.70
c = 32.560γ = 90.00
Software Package:
Software NamePurpose
SHELXL-97refinement
CNSphasing
CNSrefinement
CCP4data scaling
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-02-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance