3HW7

High pressure (0.57 GPa) crystal structure of bovine copper, zinc superoxide dismutase at 2.0 angstroms


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Flexibility of the Cu,Zn superoxide dismutase structure investigated at 0.57 GPa

Ascone, I.Savino, C.Kahn, R.Fourme, R.

(2010) Acta Crystallogr.,Sect.D 66: 654-663

  • DOI: 10.1107/S0907444910012321

  • PubMed Abstract: 
  • The 2 A resolution crystal structure of bovine erythrocyte Cu,Zn superoxide dismutase (CuZnSOD) has been determined by X-ray diffraction at high pressure (0.57 GPa) and room temperature. At 0.57 GPa the secondary, tertiary and quaternary structures a ...

    The 2 A resolution crystal structure of bovine erythrocyte Cu,Zn superoxide dismutase (CuZnSOD) has been determined by X-ray diffraction at high pressure (0.57 GPa) and room temperature. At 0.57 GPa the secondary, tertiary and quaternary structures are similar to other previously determined bovine erythrocyte CuZnSOD structures. Nevertheless, pressure has a localized impact on the atomic coordinates of C(alpha) atoms and on side chains. The compression of the crystal and of the protein backbone is anisotropic. This anisotropy is discussed, taking into account intermolecular contacts and protein conformation. Pressure perturbation highlights the more flexible zones in the protein such as the electrostatic loop. At 0.57 GPa, a global shift of the dimetallic sites in both subunits and changes in the oxidation state of Cu were observed. The flexibility of the electrostatic loop may be useful for the interaction of different metal carriers in the copper-uptake process, whereas the flexibility of the metal sites involved in the activity of the protein could contribute to explaining the ubiquitous character of CuZnSODs, which are found in organisms living in very different conditions, including the deep-sea environment. This work illustrates the potential of combining X-ray crystallography with high pressure to promote and stabilize higher energy conformational substates.


    Organizational Affiliation

    ENSCP, UMR CNRS 7223, 11 Rue Pierre et Marie Curie, 75231 Paris CEDEX 05, France. gchojnowski@iimcb.gov.pl




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Superoxide dismutase [Cu-Zn]
A, B
151Bos taurusMutation(s): 0 
Gene Names: SOD1
EC: 1.15.1.1
Find proteins for P00442 (Bos taurus)
Go to Gene View: SOD1
Go to UniProtKB:  P00442
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CU1
Query on CU1

Download SDF File 
Download CCD File 
A, B
COPPER (I) ION
Cu
VMQMZMRVKUZKQL-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.172 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 46.845α = 90.00
b = 50.509β = 90.00
c = 146.377γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
CCP4model building
REFMACrefinement
SCALAdata scaling
MAR345dtbdata collection
CCP4phasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2009-06-17 
  • Released Date: 2010-06-23 
  • Deposition Author(s): Ascone, I., Savino, C.

Revision History 

  • Version 1.0: 2010-06-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2012-04-18
    Type: Database references