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Recombinant full-length murine prion protein, mPrP(23-231): purification and spectroscopic characterization

Hornemann, Simone; Korth, Carsten; Oesch, Bruno; Riek, Roland; Wider, Gerhard; Wüthrich, Kurt; Glockshuber, Rudi (1997). Recombinant full-length murine prion protein, mPrP(23-231): purification and spectroscopic characterization. FEBS letters, 413(2):277-281.

Abstract

The cellular prion protein of the mouse, mPrP(C), consists of 208 amino acids (residues 23-231). It contains a carboxy-terminal domain, mPrP(121-231), which represents an autonomous folding unit with three alpha-helices and a two-stranded antiparallel beta-sheet. We expressed the complete amino acid sequence of the prion protein, mPrP(23-231), in the cytoplasm of Escherichia coli. mPrP(23-231) was solubilized from inclusion bodies by 8 M urea, oxidatively refolded and purified to homogeneity by conventional chromatographic techniques. Comparison of near-UV circular dichroism, fluorescence and one-dimensional 1H-NMR spectra of mPrP(23-231) and mPrP(121-231) shows that the amino-terminal segment 23-120, which includes the five characteristic octapeptide repeats, does not contribute measurably to the manifestation of three-dimensional structure as detected by these techniques, indicating that the residues 121-231 might be the only polypeptide segment of PrP(C) with a defined three-dimensional structure.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Scopus Subject Areas:Life Sciences > Biophysics
Life Sciences > Structural Biology
Life Sciences > Biochemistry
Life Sciences > Molecular Biology
Life Sciences > Genetics
Life Sciences > Cell Biology
Language:English
Date:18 August 1997
Deposited On:11 Nov 2020 14:54
Last Modified:24 Oct 2024 01:36
Publisher:Wiley-Blackwell Publishing, Inc.
ISSN:0014-5793
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/s0014-5793(97)00921-6
PubMed ID:9280297
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