1Q0E

Atomic resolution (1.15 ) crystal structure of bovine copper, zinc superoxide dismutase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.131 
  • R-Value Observed: 0.131 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of fully reduced bovine copper zinc superoxide dismutase at 1.15 A.

Hough, M.A.Hasnain, S.S.

(2003) Structure 11: 937-946

  • DOI: 10.1016/s0969-2126(03)00155-2
  • Primary Citation of Related Structures:  
    1Q0E

  • PubMed Abstract: 
  • Copper zinc superoxide dismutase (CuZnSOD) forms a crucial component of the cellular response to oxidative stress by catalyzing the dismutation of the superoxide radical to hydrogen peroxide and water. Mutations in human CuZnSOD are associated with t ...

    Copper zinc superoxide dismutase (CuZnSOD) forms a crucial component of the cellular response to oxidative stress by catalyzing the dismutation of the superoxide radical to hydrogen peroxide and water. Mutations in human CuZnSOD are associated with the development of familial amyotrophic lateral sclerosis (motor neuron disease). We have determined the structure of fully reduced bovine CuZnSOD to 1.15 A, the only atomic resolution structure for an intact CuZnSOD and one of only a small number for metalloproteins. For the first time, both subunits have been captured with the three coordinate Cu(I) ligation required by the generally accepted catalytic mechanism, where dismutation of the superoxide radical occurs via reduction of Cu. Furthermore, the improved resolution compared to previous studies (to 1.65 A) has allowed a more detailed examination of the metal center environment and its associated water network in the active site channel, facilitating the analysis of potential proton transfer routes.


    Organizational Affiliation

    Molecular Biophysics Group, CCLRC Daresbury Laboratory, Daresbury, Warrington, Cheshire, WA4 4AD, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Superoxide dismutase [Cu-Zn]A, B152Bos taurusMutation(s): 0 
Gene Names: SOD1
EC: 1.15.1.1
Find proteins for P00442 (Bos taurus)
Explore P00442 
Go to UniProtKB:  P00442
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

Download CCD File 
A, B
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Free: 0.166 
  • R-Value Work: 0.131 
  • R-Value Observed: 0.131 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.953α = 90
b = 51.507β = 90
c = 148.41γ = 90
Software Package:
Software NamePurpose
SHELXmodel building
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-09-23
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance