4N9O

Probing the N-terminal beta-sheet conversion in the crystal structure of the human prion protein bound to a Nanobody


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.150 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Probing the N-Terminal beta-Sheet Conversion in the Crystal Structure of the Human Prion Protein Bound to a Nanobody.

Abskharon, R.N.Giachin, G.Wohlkonig, A.Soror, S.H.Pardon, E.Legname, G.Steyaert, J.

(2014) J.Am.Chem.Soc. 136: 937-944

  • DOI: 10.1021/ja407527p
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Prions are fatal neurodegenerative transmissible agents causing several incurable illnesses in humans and animals. Prion diseases are caused by the structural conversion of the cellular prion protein, PrP(C), into its misfolded oligomeric form, known ...

    Prions are fatal neurodegenerative transmissible agents causing several incurable illnesses in humans and animals. Prion diseases are caused by the structural conversion of the cellular prion protein, PrP(C), into its misfolded oligomeric form, known as prion or PrP(Sc). The canonical human PrP(C) (HuPrP) fold features an unstructured N-terminal part (residues 23-124) and a well-defined C-terminal globular domain (residues 125-231). Compelling evidence indicates that an evolutionary N-terminal conserved motif AGAAAAGA (residues 113-120) plays an important role in the conversion to PrP(Sc). The intrinsic flexibility of the N-terminal has hampered efforts to obtain detailed atomic information on the structural features of this palindromic region. In this study, we crystallized the full-length HuPrP in complex with a nanobody (Nb484) that inhibits prion propagation. In the complex, the prion protein is unstructured from residue 23 to 116. The palindromic motif adopts a stable and fully extended configuration to form a three-stranded antiparallel β-sheet with the β1 and β2 strands, demonstrating that the full-length HuPrP(C) can adopt a more elaborate β0-β1-α1-β2-α2-α3 structural organization than the canonical β1-α1-β2-α2-α3 prion-like fold. From this structure, it appears that the palindromic motif mediates β-enrichment in the PrP(C) monomer as one of the early events in the conversion of PrP(C) into PrP(Sc).


    Organizational Affiliation

    Structural Biology Brussels, Vrije Universiteit Brussel , Pleinlaan 2, 1050 Brussels, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Major prion protein
A
142Homo sapiensMutation(s): 0 
Gene Names: PRNP (ALTPRP, PRIP, PRP)
Find proteins for P04156 (Homo sapiens)
Go to Gene View: PRNP
Go to UniProtKB:  P04156
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Nanobody Nb484
B
130N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.150 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 131.857α = 90.00
b = 45.781β = 96.23
c = 45.092γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
MOSFLMdata reduction
PHASERphasing
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-02-05
    Type: Database references