1SOS

ATOMIC STRUCTURES OF WILD-TYPE AND THERMOSTABLE MUTANT RECOMBINANT HUMAN CU, ZN SUPEROXIDE DISMUTASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.202 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Atomic structures of wild-type and thermostable mutant recombinant human Cu,Zn superoxide dismutase.

Parge, H.E.Hallewell, R.A.Tainer, J.A.

(1992) Proc Natl Acad Sci U S A 89: 6109-6113

  • DOI: 10.1073/pnas.89.13.6109
  • Primary Citation of Related Structures:  
    1SOS

  • PubMed Abstract: 
  • Superoxide dismutase enzymes protect aerobic organisms from oxygen-mediated free-radical damage. Crystallographic structures of recombinant human Cu,Zn superoxide dismutase have been determined, refined, and analyzed at 2.5 A resolution for wild-type and a designed thermostable double-mutant enzyme (Cys-6----Ala, Cys-111----Ser) ...

    Superoxide dismutase enzymes protect aerobic organisms from oxygen-mediated free-radical damage. Crystallographic structures of recombinant human Cu,Zn superoxide dismutase have been determined, refined, and analyzed at 2.5 A resolution for wild-type and a designed thermostable double-mutant enzyme (Cys-6----Ala, Cys-111----Ser). The 10 subunits (five dimers) in the crystallographic asymmetric unit form an unusual stable open lattice with 80-A-diameter channels. The 10 independently fit and refined subunits provide high accuracy, error analysis, and insights on loop conformations. There is a helix dipole interaction with the Zn site, and 14 residues form two or more structurally conserved side-chain to main-chain hydrogen bonds that appear critical to active-site architecture, loop conformation, and the increased stability resulting from the Cys-111----Ser mutation.


    Organizational Affiliation

    Department of Molecular Biology, Scripps Research Institute, La Jolla, CA 92037.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SUPEROXIDE DISMUTASE154Homo sapiensMutation(s): 0 
Gene Names: SOD1
EC: 1.15.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00441 (Homo sapiens)
Explore P00441 
Go to UniProtKB:  P00441
PHAROS:  P00441
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
BA [auth I], O [auth F]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
AA [auth I] , DA [auth E] , FA [auth J] , L [auth A] , N [auth F] , Q [auth B] , S [auth G] , U [auth C] , 
AA [auth I],  DA [auth E],  FA [auth J],  L [auth A],  N [auth F],  Q [auth B],  S [auth G],  U [auth C],  W [auth H],  Y [auth D]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CU
Query on CU

Download Ideal Coordinates CCD File 
CA [auth E] , EA [auth J] , K [auth A] , M [auth F] , P [auth B] , R [auth G] , T [auth C] , V [auth H] , 
CA [auth E],  EA [auth J],  K [auth A],  M [auth F],  P [auth B],  R [auth G],  T [auth C],  V [auth H],  X [auth D],  Z [auth I]
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Work: 0.202 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 205.2α = 90
b = 167β = 90
c = 145.5γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1993-04-15
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other