1YJP

Structure of GNNQQNY from yeast prion Sup35


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structure of the cross-beta spine of amyloid-like fibrils.

Nelson, R.Sawaya, M.R.Balbirnie, M.Madsen, A.O.Riekel, C.Grothe, R.Eisenberg, D.

(2005) Nature 435: 773-778

  • DOI: 10.1038/nature03680
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Numerous soluble proteins convert to insoluble amyloid-like fibrils that have common properties. Amyloid fibrils are associated with fatal diseases such as Alzheimer's, and amyloid-like fibrils can be formed in vitro. For the yeast protein Sup35, con ...

    Numerous soluble proteins convert to insoluble amyloid-like fibrils that have common properties. Amyloid fibrils are associated with fatal diseases such as Alzheimer's, and amyloid-like fibrils can be formed in vitro. For the yeast protein Sup35, conversion to amyloid-like fibrils is associated with a transmissible infection akin to that caused by mammalian prions. A seven-residue peptide segment from Sup35 forms amyloid-like fibrils and closely related microcrystals, from which we have determined the atomic structure of the cross-beta spine. It is a double beta-sheet, with each sheet formed from parallel segments stacked in register. Side chains protruding from the two sheets form a dry, tightly self-complementing steric zipper, bonding the sheets. Within each sheet, every segment is bound to its two neighbouring segments through stacks of both backbone and side-chain hydrogen bonds. The structure illuminates the stability of amyloid fibrils, their self-seeding characteristic and their tendency to form polymorphic structures.


    Related Citations: 
    • Refinement of Macromolecular Structures by the Maximum-Likelihood Method
      Murshudov, G.N.,Vagin, A.A.,Dodson, E.J.
      (1997) Acta Crystallogr.,Sect.D 53: 240


    Organizational Affiliation

    Howard Hughes Medical Institute, UCLA-DOE Institute for Genomics and Proteomics, Box 951570, UCLA, Los Angeles, California 90095-1570, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Eukaryotic peptide chain release factor GTP-binding subunit
A
7Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SUP35 (GST1, PNM2, SAL3, SUF12, SUP2)
Find proteins for P05453 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P05453
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 21.937α = 90.00
b = 4.866β = 107.08
c = 23.477γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-06-14
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description