2JOH

NMR structure of rabbit prion protein mutation S173N


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 15 
  • 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

Unique structural characteristics of the rabbit prion protein.

Wen, Y.Li, J.Yao, W.Xiong, M.Hong, J.Peng, Y.Xiao, G.Lin, D.

(2010) J.Biol.Chem. 285: 31682-31693

  • DOI: 10.1074/jbc.M110.118844
  • Primary Citation of Related Structures:  2FJ3

  • PubMed Abstract: 
  • Rabbits are one of the few mammalian species that appear to be resistant to transmissible spongiform encephalopathies due to the structural characteristics of the rabbit prion protein (RaPrP(C)) itself. Here, we determined the solution structures of ...

    Rabbits are one of the few mammalian species that appear to be resistant to transmissible spongiform encephalopathies due to the structural characteristics of the rabbit prion protein (RaPrP(C)) itself. Here, we determined the solution structures of the recombinant protein RaPrP(C)-(91-228) and its S173N variant and detected the backbone dynamics of their structured C-terminal domains-(121-228). In contrast to many other mammalian PrP(C)s, loop 165-172, which connects β-sheet-2 and α-helix-2, is well-defined in RaPrP(C). For the first time, order parameters S(2) are obtained for residues in this loop region, indicating that loop 165-172 of RaPrP(C) is highly ordered. Compared with the wild-type RaPrP(C), less hydrogen bonds form in the S173N variant. The NMR dynamics analysis reveals a distinct increase in the structural flexibility of loop 165-172 and helix-3 after the S173N substitution, implying that the S173N substitution disturbs the long range interaction of loop 165-172 with helix-3, which further leads to a marked decrease in the global conformational stability. Significantly, RaPrP(C) possesses a unique charge distribution, carrying a continuous area of positive charges on the surface, which is distinguished from other PrP(C)s. The S173N substitution causes visible changes of the charge distribution around the recognition sites for the hypothetical protein X. Our results suggest that the ordered loop 165-172 and its interaction with helix-3, together with the unique distribution of surface electrostatic potential, significantly contribute to the unique structural characteristics of RaPrP(C).


    Related Citations: 
    • 1H, 13C and 15N resonance assignments of rabbit prion protein (91-228).
      Li, J.,Mei, F.H.,Xiao, G.F.,Guo, C.Y.,Lin, D.H.
      (2007) J.Biomol.Nmr 38: 181


    Organizational Affiliation

    NMR Laboratory, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Major prion protein
A
148Oryctolagus cuniculusGene Names: PRNP (PRP)
Find proteins for Q95211 (Oryctolagus cuniculus)
Go to Gene View: PRNP
Go to UniProtKB:  Q95211
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2JOH Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2007-03-13 
  • Released Date: 2008-02-19 
  • Deposition Author(s): Li, J., Lin, D.

Revision History 

  • Version 1.0: 2008-02-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance