1SKH

N-terminal (1-30) of bovine Prion protein


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 22 
  • Selection Criteria: a combination of least constraint violations and DYANA target function 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

NMR solution structure and membrane interaction of the N-terminal sequence (1-30) of the bovine prion protein.

Biverstahl, H.Andersson, A.Graslund, A.Maler, L.

(2004) Biochemistry 43: 14940-14947

  • DOI: 10.1021/bi0485070
  • Primary Citation of Related Structures:  
    1SKH

  • PubMed Abstract: 
  • The structure and membrane interaction of the N-terminal sequence (1-30) of the bovine prion protein (bPrPp) has been investigated by NMR spectroscopy in phospholipid membrane mimetic systems. CD spectroscopy revealed that the peptide adopts a largely alpha-helical structure in zwitterionic bicelles as well as in DHPC micelles but has a less degree of alpha-helix structure in partly charged bicelles ...

    The structure and membrane interaction of the N-terminal sequence (1-30) of the bovine prion protein (bPrPp) has been investigated by NMR spectroscopy in phospholipid membrane mimetic systems. CD spectroscopy revealed that the peptide adopts a largely alpha-helical structure in zwitterionic bicelles as well as in DHPC micelles but has a less degree of alpha-helix structure in partly charged bicelles. The solution structure of bPrPp was determined in DHPC micelles, and an alpha-helix was found between residues Ser8 and Ile21. The residues within the helical region show slow amide hydrogen exchange. Translational diffusion measurements in zwitterionic q = 0.5 bicelles show that the peptide does not induce aggregation of the bicelles. Increased quadrupolar splittings were observed in the outer part of the (2)H spectrum of DMPC in q = 3.5 bicelles, indicating that the peptide induces a certain degree of order in the bilayer. The amide hydrogen exchange and the (2)H NMR results are consistent with a slight positive hydrophobic mismatch and that bPrPp forms a stable helix that inserts in a transmembrane location in the bilayer. The structure of bPrPp and its position in the membrane may be relevant for the understanding of how the N-terminal (1-30) part of the bovine PrP functions as a cell-penetrating peptide. These findings may lead to a better understanding of how the prion protein accumulates at the membrane surface and also how the conversion into the scrapie form is carried out.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Arrhenius Laboratory, Stockholm University, 10691 Stockholm, Sweden.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Major prion protein 2A30Bos taurusMutation(s): 0 
Gene Names: PRNPPRP
Find proteins for P10279 (Bos taurus)
Explore P10279 
Go to UniProtKB:  P10279
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 60 
  • Conformers Submitted: 22 
  • Selection Criteria: a combination of least constraint violations and DYANA target function 
  • OLDERADO: 1SKH Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-03-01
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance