Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 32.11 kDa 
• Atom Count: 2414 
• Residue Count: 306 
• Unique protein chains: 1

1AZV

FAMILIAL ALS MUTANT G37R CUZNSOD (HUMAN)

• DOI: 10.2210/pdb1AZV/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Saccharomyces cerevisiae
• Mutation(s): Yes 


• Deposited: 1997-11-21 Released: 1998-02-25 
• Deposition Author(s): Hart, P.J., Liu, H., Pellegrini, M., Nersissian, A.M., Gralla, E.B., Valentine, J.S., Eisenberg, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.244 
• R-Value Work: 0.202 
• R-Value Observed: 0.202 

Literature

Subunit asymmetry in the three-dimensional structure of a human CuZnSOD mutant found in familial amyotrophic lateral sclerosis.

Hart, P.J., Liu, H., Pellegrini, M., Nersissian, A.M., Gralla, E.B., Valentine, J.S., Eisenberg, D.

(1998) Protein Sci 7: 545-555

• PubMed: 9541385 
• DOI: 10.1002/pro.5560070302
• Primary Citation of Related Structures:  
  1AZV


• PubMed Abstract: 
  

The X-ray crystal structure of a human copper/zinc superoxide dismutase mutant (G37R CuZnSOD) found in some patients with the inherited form of Lou Gehrig's disease (FALS) has been determined to 1.9 angstroms resolution. The two SOD subunits have distinct environments in the crystal and are different in structure at their copper binding sites. One subunit (subunit[intact]) shows a four-coordinate ligand geometry of the copper ion, whereas the other subunit (subunit[broken]) shows a three-coordinate geometry of the copper ion. Also, subunit(intact) displays higher atomic displacement parameters for backbone atoms ((B) = 30 +/- 10 angstroms2) than subunit(broken) ((B) = 24 +/- 11 angstroms2). This structure is the first CuZnSOD to show large differences between the two subunits. Factors that may contribute to these differences are discussed and a possible link of a looser structure to FALS is suggested.

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Organizational Affiliation: 

UCLA-DOE Laboratory of Structural Biology and Molecular Medicine, University of California, Los Angeles 90095, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
COPPER/ZINC SUPEROXIDE DISMUTASE	A, B	153	Homo sapiens	Mutation(s): 1  Gene Names: SOD1 EC: 1.15.1.1
Find proteins for P00441 (Homo sapiens) Explore P00441  Go to UniProtKB:  P00441
NIH Common Fund Data Resources
PHAROS:  P00441 GTEx:  ENSG00000142168

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CU	A, B	COPPER (II) ION Cu JPVYNHNXODAKFH-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.244 
• R-Value Work: 0.202 
• R-Value Observed: 0.202 
• Space Group: P 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.2	α = 90
b = 67.2	β = 90
c = 83.8	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1997-11-21 
• Released Date: 1998-02-25 
Deposition Author(s): Hart, P.J., Liu, H., Pellegrini, M., Nersissian, A.M., Gralla, E.B., Valentine, J.S., Eisenberg, D.

Revision History 

• Version 1.0: 1998-02-25
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance