1OEI

Human prion protein 61-84


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 

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This is version 1.2 of the entry. See complete history


Literature

The Octapeptide Repeats in Mammalian Prion Protein Constitute a Ph-Dependent Folding and Aggregation Site

Zahn, R.

(2003) J Mol Biol 334: 477

  • DOI: 10.1016/j.jmb.2003.09.048
  • Primary Citation of Related Structures:  
    1OEI, 1OEH

  • PubMed Abstract: 
  • Structural studies of mammalian prion protein at pH values between 4.5 and 5.5 established that the N-terminal 100 residue domain is flexibly disordered. Here, we show that at pH values between 6.5 and 7.8, i.e. the pH at the cell membrane, the octapeptide repeats in recombinant human prion protein hPrP(23-230) encompassing the highly conserved amino acid sequence PHGGGWGQ are structured ...

    Structural studies of mammalian prion protein at pH values between 4.5 and 5.5 established that the N-terminal 100 residue domain is flexibly disordered. Here, we show that at pH values between 6.5 and 7.8, i.e. the pH at the cell membrane, the octapeptide repeats in recombinant human prion protein hPrP(23-230) encompassing the highly conserved amino acid sequence PHGGGWGQ are structured. The nuclear magnetic resonance solution structure of the octapeptide repeats at pH 6.2 reveals a new structural motif that causes a reversible pH-dependent PrP oligomerization. Within the aggregation motif the segments HGGGW and GWGQ adopt a loop conformation and a beta-turn-like structure, respectively. Comparison with the crystal structure of HGGGW-Cu(2+) indicates that the binding of copper ions induces a conformational transition that presumably modulates PrP aggregation. The knowledge that the cellular prion protein is immobilized on the cell surface along with our results suggests a functional role of aggregation in endocytosis or homophilic cell adhesion.


    Organizational Affiliation

    Institut für Molekularbiologie und Biophysik, Eidgenössische Technische Hochschule Zürich, CH-8093, Zürich, Switzerland. rz@mol.biol.ethz.ch



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MAJOR PRION PROTEINA24Homo sapiensMutation(s): 0 
Gene Names: PRNPALTPRPPRIPPRP
Find proteins for P04156 (Homo sapiens)
Explore P04156 
Go to UniProtKB:  P04156
NIH Common Fund Data Resources
PHAROS:  P04156
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: LEAST RESTRAINT VIOLATION 
  • OLDERADO: 1OEI Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2003-03-27 
  • Released Date: 2004-05-06 
  • Deposition Author(s): Zahn, R.

Revision History  (Full details and data files)

  • Version 1.0: 2004-05-06
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance