4RIL

Structure of the amyloid forming segment, GAVVTGVTAVA, from the NAC domain of Parkinson's disease protein alpha-synuclein, residues 68-78, determined by electron diffraction


Experimental Data Snapshot

  • Method: ELECTRON CRYSTALLOGRAPHY
  • Resolution: 1.43 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.251 

wwPDB Validation   3D Report Full Report


This is version 1.5 of the entry. See complete history


Literature

Structure of the toxic core of alpha-synuclein from invisible crystals.

Rodriguez, J.A.Ivanova, M.I.Sawaya, M.R.Cascio, D.Reyes, F.E.Shi, D.Sangwan, S.Guenther, E.L.Johnson, L.M.Zhang, M.Jiang, L.Arbing, M.A.Nannenga, B.L.Hattne, J.Whitelegge, J.Brewster, A.S.Messerschmidt, M.Boutet, S.Sauter, N.K.Gonen, T.Eisenberg, D.S.

(2015) Nature 525: 486-490

  • DOI: 10.1038/nature15368
  • Primary Citation of Related Structures:  
    4RIK, 4RIL, 4ZNN

  • PubMed Abstract: 
  • The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term NACore, appears to be responsible for amyloid formation and cytotoxicity of human α-synuclein ...

    The protein α-synuclein is the main component of Lewy bodies, the neuron-associated aggregates seen in Parkinson disease and other neurodegenerative pathologies. An 11-residue segment, which we term NACore, appears to be responsible for amyloid formation and cytotoxicity of human α-synuclein. Here we describe crystals of NACore that have dimensions smaller than the wavelength of visible light and thus are invisible by optical microscopy. As the crystals are thousands of times too small for structure determination by synchrotron X-ray diffraction, we use micro-electron diffraction to determine the structure at atomic resolution. The 1.4 Å resolution structure demonstrates that this method can determine previously unknown protein structures and here yields, to our knowledge, the highest resolution achieved by any cryo-electron microscopy method to date. The structure exhibits protofibrils built of pairs of face-to-face β-sheets. X-ray fibre diffraction patterns show the similarity of NACore to toxic fibrils of full-length α-synuclein. The NACore structure, together with that of a second segment, inspires a model for most of the ordered portion of the toxic, full-length α-synuclein fibril, presenting opportunities for the design of inhibitors of α-synuclein fibrils.


    Organizational Affiliation

    Howard Hughes Medical Institute, UCLA-DOE Institute, Departments of Biological Chemistry and Chemistry and Biochemistry, Box 951570, UCLA, Los Angeles, California 90095-1570, USA.



Macromolecules
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-synucleinA11Homo sapiensMutation(s): 0 
Gene Names: SNCANACPPARK1
UniProt & NIH Common Fund Data Resources
Find proteins for P37840 (Homo sapiens)
Explore P37840 
Go to UniProtKB:  P37840
PHAROS:  P37840
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.81α = 90
b = 4.82β = 105.68
c = 16.79γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
PHASERphasing
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
XSCALEdata scaling
BUSTERrefinement

Structure Validation

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Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2015-08-26
    Type: Initial release
  • Version 1.1: 2015-09-09
    Changes: Database references
  • Version 1.2: 2015-09-23
    Changes: Database references
  • Version 1.3: 2015-10-07
    Changes: Database references
  • Version 1.4: 2018-04-25
    Changes: Author supporting evidence, Data collection, Data processing
  • Version 1.5: 2021-06-30
    Changes: Data collection