2L2P

Folding Intermediate of the Fyn SH3 A39V/N53P/V55L from NMR Relaxation Dispersion Experiments


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 6666 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of an intermediate state in protein folding and aggregation.

Neudecker, P.Robustelli, P.Cavalli, A.Walsh, P.Lundstrom, P.Zarrine-Afsar, A.Sharpe, S.Vendruscolo, M.Kay, L.E.

(2012) Science 336: 362-366

  • DOI: 10.1126/science.1214203
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Protein-folding intermediates have been implicated in amyloid fibril formation involved in neurodegenerative disorders. However, the structural mechanisms by which intermediates initiate fibrillar aggregation have remained largely elusive. To gain in ...

    Protein-folding intermediates have been implicated in amyloid fibril formation involved in neurodegenerative disorders. However, the structural mechanisms by which intermediates initiate fibrillar aggregation have remained largely elusive. To gain insight, we used relaxation dispersion nuclear magnetic resonance spectroscopy to determine the structure of a low-populated, on-pathway folding intermediate of the A39V/N53P/V55L (A, Ala; V, Val; N, Asn; P, Pro; L, Leu) Fyn SH3 domain. The carboxyl terminus remains disordered in this intermediate, thereby exposing the aggregation-prone amino-terminal β strand. Accordingly, mutants lacking the carboxyl terminus and thus mimicking the intermediate fail to safeguard the folding route and spontaneously form fibrillar aggregates. The structure provides a detailed characterization of the non-native interactions stabilizing an aggregation-prone intermediate under native conditions and insight into how such an intermediate can derail folding and initiate fibrillation.


    Organizational Affiliation

    Department of Biochemistry, University of Toronto, Toronto, Ontario M5S 1A8, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase Fyn
A
66Gallus gallusMutation(s): 3 
Gene Names: FYN
EC: 2.7.10.2
Find proteins for Q05876 (Gallus gallus)
Go to Gene View: FYN
Go to UniProtKB:  Q05876
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 6666 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2L2P Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-09-14
    Type: Initial release
  • Version 1.1: 2012-05-16
    Type: Database references