2KTM

Solution NMR structure of H2H3 domain of ovine prion protein (residues 167-234)


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 12 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Prion fibrillization is mediated by a native structural element that comprises helices H2 and H3.

Adrover, M.Pauwels, K.Prigent, S.de Chiara, C.Xu, Z.Chapuis, C.Pastore, A.Rezaei, H.

(2010) J.Biol.Chem. 285: 21004-21012

  • DOI: 10.1074/jbc.M110.111815

  • PubMed Abstract: 
  • Aggregation and misfolding of the prion protein (PrP) are thought to be the cause of a family of lethal neurodegenerative diseases affecting humans and other animals. Although the structures of PrP from several species have been solved, still little ...

    Aggregation and misfolding of the prion protein (PrP) are thought to be the cause of a family of lethal neurodegenerative diseases affecting humans and other animals. Although the structures of PrP from several species have been solved, still little is known about the mechanisms that lead to the misfolded species. Here, we show that the region of PrP comprising the hairpin formed by the helices H2 and H3 is a stable independently folded unit able to retain its secondary and tertiary structure also in the absence of the rest of the sequence. We also prove that the isolated H2H3 is highly fibrillogenic and forms amyloid fibers morphologically similar to those obtained for the full-length protein. Fibrillization of H2H3 but not of full-length PrP is concomitant with formation of aggregates. These observations suggest a "banana-peeling" mechanism for misfolding of PrP in which H2H3 is the aggregation seed that needs to be first exposed to promote conversion from a helical to a beta-rich structure.


    Organizational Affiliation

    MRC National Institute for Medical Research, The Ridgeway, London NW7 1AA, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Major prion protein
A
89Ovis ariesMutation(s): 1 
Gene Names: PRNP (PRP, SIP)
Find proteins for P23907 (Ovis aries)
Go to Gene View: PRNP
Go to UniProtKB:  P23907
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 12 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2KTM Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2015-03-18
    Type: Database references