Biological Assembly 1  

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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: 32127.69 
• Atom Count: 1919 
• Residue Count: 306 
• Unique protein chains: 1

3CQQ

Human SOD1 G85R Variant, Structure II

• DOI: 10.2210/pdb3CQQ/pdb

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


• Deposited: 2008-04-03 Released: 2008-04-29 
• Deposition Author(s): Cao, X., Antonyuk, S., Whitson, L.J., Taylor, A.B., Holloway, S.P., Strange, R.W., Doucette, P.A., Valentine, J.S., Tiwari, A., Hayward, L.J., Padua, S., Cohlberg, J.A., Hasnain, S.S., Hart, P.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.240 
• R-Value Work: 0.192 

Literature

Structures of the G85R Variant of SOD1 in Familial Amyotrophic Lateral Sclerosis.

Cao, X., Antonyuk, S.V., Seetharaman, S.V., Whitson, L.J., Taylor, A.B., Holloway, S.P., Strange, R.W., Doucette, P.A., Valentine, J.S., Tiwari, A., Hayward, L.J., Padua, S., Cohlberg, J.A., Hasnain, S.S., Hart, P.J.

(2008) J.Biol.Chem. 283: 16169-16177

• PubMed: 18378676 
• DOI: 10.1074/jbc.M801522200
• Primary Citation of Related Structures:  
  3CQP, 2VR8, 2VR7, 2VR6


• PubMed Abstract: 
  

Mutations in the gene encoding human copper-zinc superoxide dismutase (SOD1) cause a dominant form of the progressive neurodegenerative disease amyotrophic lateral sclerosis. Transgenic mice expressing the human G85R SOD1 variant develop paralytic symptoms concomitant with the appearance of SOD1-enriched proteinaceous inclusions in their neural tissues. The process(es) through which misfolding or aggregation of G85R SOD1 induces motor neuron toxicity is not understood. Here we present structures of the human G85R SOD1 variant determined by single crystal x-ray diffraction. Alterations in structure of the metal-binding loop elements relative to the wild type enzyme suggest a molecular basis for the metal ion deficiency of the G85R SOD1 protein observed in the central nervous system of transgenic mice and in purified recombinant G85R SOD1. These findings support the notion that metal-deficient and/or disulfide-reduced mutant SOD1 species contribute to toxicity in SOD1-linked amyotrophic lateral sclerosis.

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Organizational Affiliation: 

Department of Biochemistry and the X-ray Crystallography Core Laboratory, The University of Texas Health Ssience Center, San Antonio, Texas 78229, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Superoxide dismutase [Cu-Zn]	A, B	153	Homo sapiens	Mutation(s): 0  Gene Names: SOD1 EC: 1.15.1.1
Find proteins for P00441 (Homo sapiens) Go to Gene View: SOD1 Go to UniProtKB:  P00441

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
ACE	B	ACETYL GROUP C2 H4 O IKHGUXGNUITLKF-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSX	A, B	L-PEPTIDE LINKING	C3 H7 N O3 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.9 Å
• R-Value Free: 0.240 
• R-Value Work: 0.192 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 40.038	α = 90.00
b = 58.442	β = 90.00
c = 104.539	γ = 90.00

Software Package:

Software Name	Purpose
REFMAC	refinement
MOLREP	phasing
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2008-04-03 
• Released Date: 2008-04-29 
• Deposition Author(s): Cao, X., Antonyuk, S., Whitson, L.J., Taylor, A.B., Holloway, S.P., Strange, R.W., Doucette, P.A., Valentine, J.S., Tiwari, A., Hayward, L.J., Padua, S., Cohlberg, J.A., Hasnain, S.S., Hart, P.J.

Revision History 

• Version 1.0: 2008-04-29
  Type: Initial release
• Version 1.1: 2011-07-13
  Type: Advisory, Refinement description, Version format compliance