Solution structure of Xenopus leavis prion protein

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

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This is version 1.3 of the entry. See complete history


Prion protein NMR structures of chicken, turtle, and frog

Calzolai, L.Lysek, D.A.Perez, D.R.Guntert, P.Wuthrich, K.

(2005) Proc Natl Acad Sci U S A 102: 651-655

  • DOI: https://doi.org/10.1073/pnas.0408939102
  • Primary Citation of Related Structures:  
    1U3M, 1U5L, 1XU0

  • PubMed Abstract: 

    The NMR structures of the recombinant prion proteins from chicken (Gallus gallus; chPrP), the red-eared slider turtle (Trachemys scripta; tPrP), and the African clawed frog (Xenopus laevis; xlPrP) are presented. The amino acid sequences of these prion proteins show approximately 30% identity with mammalian prion proteins. All three species form the same molecular architecture as mammalian PrPC, with a long, flexibly disordered tail attached to the N-terminal end of a globular domain. The globular domain in chPrP and tPrP contains three alpha-helices, one short 3(10)-helix, and a short antiparallel beta-sheet. In xlPrP, the globular domain includes three alpha-helices and a somewhat longer beta-sheet than in the other species. The spatial arrangement of these regular secondary structures coincides closely with that of the globular domain in mammalian prion proteins. Based on the low sequence identity to mammalian PrPs, comparison of chPrP, tPrP, and xlPrP with mammalian PrPC structures is used to identify a set of essential amino acid positions for the preservation of the same PrPC fold in birds, reptiles, amphibians, and mammals. There are additional conserved residues without apparent structural roles, which are of interest for the ongoing search for physiological functions of PrPC in healthy organisms.

  • Organizational Affiliation

    Institut für Molekularbiologie und Biophysik, Eidgenössische Technische Hochschule Zürich, CH-8093 Zürich, Switzerland.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
prion protein130Xenopus laevisMutation(s): 0 
Gene Names: prnp
Find proteins for Q5S1W7 (Xenopus laevis)
Explore Q5S1W7 
Go to UniProtKB:  Q5S1W7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5S1W7
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-01-04
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-02
    Changes: Data collection, Database references, Derived calculations