5IIW

Corkscrew assembly of SOD1 residues 28-38 without potassium iodide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.240 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Atomic structure of a toxic, oligomeric segment of SOD1 linked to amyotrophic lateral sclerosis (ALS).

Sangwan, S.Zhao, A.Adams, K.L.Jayson, C.K.Sawaya, M.R.Guenther, E.L.Pan, A.C.Ngo, J.Moore, D.M.Soriaga, A.B.Do, T.D.Goldschmidt, L.Nelson, R.Bowers, M.T.Koehler, C.M.Shaw, D.E.Novitch, B.G.Eisenberg, D.S.

(2017) Proc Natl Acad Sci U S A 114: 8770-8775

  • DOI: 10.1073/pnas.1705091114
  • Primary Citation of Related Structures:  
    5IIW, 5DLI

  • PubMed Abstract: 
  • Fibrils and oligomers are the aggregated protein agents of neuronal dysfunction in ALS diseases. Whereas we now know much about fibril architecture, atomic structures of disease-related oligomers have eluded determination. Here, we determine the corkscre ...

    Fibrils and oligomers are the aggregated protein agents of neuronal dysfunction in ALS diseases. Whereas we now know much about fibril architecture, atomic structures of disease-related oligomers have eluded determination. Here, we determine the corkscrew-like structure of a cytotoxic segment of superoxide dismutase 1 (SOD1) in its oligomeric state. Mutations that prevent formation of this structure eliminate cytotoxicity of the segment in isolation as well as cytotoxicity of the ALS-linked mutants of SOD1 in primary motor neurons and in a Danio rerio (zebrafish) model of ALS. Cytotoxicity assays suggest that toxicity is a property of soluble oligomers, and not large insoluble aggregates. Our work adds to evidence that the toxic oligomeric entities in protein aggregation diseases contain antiparallel, out-of-register β-sheet structures and identifies a target for structure-based therapeutics in ALS.


    Organizational Affiliation

    Howard Hughes Medical Institute, UCLA-DOE and Molecular Biology Institutes, Department of Biological Chemistry, University of California, Los Angeles, CA 90095; david@mbi.ucla.edu.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Superoxide dismutase [Cu-Zn] ABCDEFGH11Homo sapiensMutation(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
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.239 
  • R-Value Observed: 0.240 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 30.89α = 90
b = 43.23β = 90
c = 70.97γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
SHELXphasing
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute on Aging (NIH/NIA)United StatesAG029430
Department of Energy (DOE, United States)United States--

Revision History 

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Author supporting evidence
  • Version 1.2: 2017-11-01
    Changes: Author supporting evidence
  • Version 1.3: 2019-01-09
    Changes: Data collection, Database references
  • Version 1.4: 2019-12-04
    Changes: Author supporting evidence