Solution-state NMR structure of prion protein mutant V210I at neutral pH

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

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Structural Rearrangements at Physiological pH: Nuclear Magnetic Resonance Insights from the V210I Human Prion Protein Mutant.

Biljan, I.Ilc, G.Giachin, G.Plavec, J.Legname, G.

(2012) Biochemistry 51: 7465-7474

  • DOI: https://doi.org/10.1021/bi3009856
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    A major focus in prion structural biology studies is unraveling the molecular mechanism leading to the structural conversion of PrP(C) to its pathological form, PrP(Sc). In our recent studies, we attempted to understand the early events of the conformational changes leading to PrP(Sc) using as investigative tools point mutations clustered in the open reading frame of the human PrP gene and linked to genetic forms of human prion diseases. In the work presented here, we investigate the effect of pH on the nuclear magnetic resonance (NMR) structure of recombinant human PrP (HuPrP) carrying the pathological V210I mutation responsible for familial Creutzfeldt-Jakob disease. The NMR structure of HuPrP(V210I) determined at pH 7.2 shows the same overall fold as the previously determined structure of HuPrP(V210I) at pH 5.5. It consists of a disordered N-terminal tail (residues 90-124) and a globular C-terminal domain (residues 125-231) comprising three α-helices and a short antiparallel β-sheet. Detailed comparison of three-dimensional structures of HuPrP(V210I) at pH 7.2 and 5.5 revealed significant local structural differences, with the most prominent pH-related structural variations clustered in the α(2)-α(3) interhelical region, at the interface of the β(1)-α(1) loop, in helices α(1) and α(3), and in the β(2)-α(2) loop region. The detailed analysis of interactions among secondary structure elements suggests a higher degree of structural ordering of HuPrP(V210I) under neutral-pH conditions, thus implying that spontaneous misfolding of PrP(C) may occur under acidic-pH conditions in endosomal compartments.

  • Organizational Affiliation

    Slovenian NMR Centre, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Major prion protein147Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P04156 (Homo sapiens)
Explore P04156 
Go to UniProtKB:  P04156
PHAROS:  P04156
GTEx:  ENSG00000171867 
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UniProt GroupP04156
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-09-19
    Type: Initial release
  • Version 1.1: 2012-10-03
    Changes: Database references
  • Version 1.2: 2013-01-30
    Changes: Database references
  • Version 1.3: 2013-02-20
    Changes: Database references
  • Version 1.4: 2023-06-14
    Changes: Database references, Other