1MY6

The 1.6 A Structure of Fe-Superoxide Dismutase from the thermophilic cyanobacterium Thermosynechococcus elongatus : Correlation of EPR and Structural Characteristics


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The 1.6 A resolution structure of Fe-superoxide dismutase from the thermophilic cyanobacterium Thermosynechococcus elongatus.

Kerfeld, C.A.Yoshida, S.Tran, K.T.Yeates, T.O.Cascio, D.Bottin, H.Berthomieu, C.Sugiura, M.Boussac, A.

(2003) J.BIOL.INORG.CHEM. 8: 707-714

  • DOI: 10.1007/s00775-003-0469-0

  • PubMed Abstract: 
  • The iron-containing superoxide dismutase (FeSOD) from the thermophilic cyanobacterium Thermosynechococcus elongatus has been isolated. The protein crystallizes readily and we have determined the structure to 1.6 A resolution. This is the first struct ...

    The iron-containing superoxide dismutase (FeSOD) from the thermophilic cyanobacterium Thermosynechococcus elongatus has been isolated. The protein crystallizes readily and we have determined the structure to 1.6 A resolution. This is the first structural characterization of an FeSOD isolated from a cyanobacterium and one of the highest resolution FeSOD structures determined to date. The activity of the T. elongatus FeSOD has been measured both at 25 degrees C and 50 degrees C and it has been spectroscopically characterized. The T. elongatus FeSOD EPR spectra at pH 5.1, 7.5 and 10.0 are similar. This indicates that no change in the geometry of the Fe(III) site occurs over a wide range of pH. This is in contrast to the other FeSODs described in the literature.


    Organizational Affiliation

    Molecular Biology Institute, UCLA, Box 951570, Los Angeles, CA 90095-1570, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Iron (III) Superoxide Dismutase
A, B
199Thermosynechococcus elongatus (strain BP-1)Mutation(s): 0 
Gene Names: sodB
EC: 1.15.1.1
Find proteins for Q8DIR2 (Thermosynechococcus elongatus (strain BP-1))
Go to UniProtKB:  Q8DIR2
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FE
Query on FE

Download SDF File 
Download CCD File 
A, B
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.194 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 51.749α = 90.00
b = 63.644β = 110.45
c = 74.709γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
EPMRphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-07-29
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance