Unfolded-state structure and dynamics influence the fibril formation of human prion protein

C Gerum, R Silvers, J Wirmer-Bartoschek… - Angewandte …, 2009 - uni-frankfurt.de
Using high-resolution NMR spectroscopy, the Schwalbe group could characterize the
unfolded state of the human prion protein in its SS-oxidized and-reduced state. NMR …

Structural effects of multiple pathogenic mutations suggest a model for the initiation of misfolding of the prion protein

J Singh, JB Udgaonkar - Angewandte Chemie, 2015 - Wiley Online Library
A molecular understanding of the prion diseases requires delineation of the origin of
misfolding of the prion protein (PrP). An understanding of how different disease‐linked …

Enhanced stability of human prion proteins with two disulfide bridges

TPJ Knowles, R Zahn - Biophysical journal, 2006 - cell.com
We compare the folding equilibrium of the globular domain of the human prion protein with
two variants of this domain, for which an additional disulfide bond was introduced into the …

Polymorphism at 129 dictates metastable conformations of the human prion protein N-terminal β-sheet

SA Paz, E Vanden-Eijnden, CF Abrams - Chemical Science, 2017 - pubs.rsc.org
We study the thermodynamic stability of the native state of the human prion protein using a
new free-energy method, replica-exchange on-the-fly parameterization. This method is …

Conformational plasticity of the Gerstmann–Sträussler–Scheinker disease peptide as indicated by its multiple aggregation pathways

A Natalello, VV Prokorov, F Tagliavini, M Morbin… - Journal of molecular …, 2008 - Elsevier
The existence of several prion strains and their capacity of overcoming species barriers
seem to point to a high conformational adaptability of the prion protein. To investigate this …

Probing early misfolding events in prion protein mutants by NMR spectroscopy

G Giachin, I Biljan, G Ilc, J Plavec, G Legname - Molecules, 2013 - mdpi.com
The post-translational conversion of the ubiquitously expressed cellular form of the prion
protein, PrPC, into its misfolded and pathogenic isoform, known as prion or PrPSc, plays a …

Crystal structure of a human prion protein fragment reveals a motif for oligomer formation

MI Apostol, K Perry, WK Surewicz - Journal of the American …, 2013 - ACS Publications
The structural transition of the prion protein from α-helical-to β-sheet-rich underlies its
conversion into infectious and disease-associated isoforms. Here we describe the crystal …

Contribution of a putative salt bridge and backbone dynamics in the structural instability of human prion protein upon R208H mutation

K Bamdad, H Naderi-Manesh - Biochemical and biophysical research …, 2007 - Elsevier
Molecular dynamics simulation method is used to assess the contribution of a disease-
associated salt bridge in the early stages of the conformational rearrangement of human …

Critical region for amyloid fibril formation of mouse prion protein: unusual amyloidogenic properties of the helix 2 peptide

K Yamaguchi, T Matsumoto, K Kuwata - Biochemistry, 2008 - ACS Publications
To gain insight into the structural mechanism of the conformational conversion process of
prion, we examined the potential amyloidogenic property of each secondary structural …

Changing the solvent accessibility of the prion protein disulfide bond markedly influences its trafficking and effect on cell function

CA Tabrett, CF Harrison, B Schmidt… - Biochemical …, 2010 - portlandpress.com
Prion diseases are fatal transmissible neurodegenerative diseases that result from structural
conversion of the prion protein into a disease-associated isoform. The prion protein contains …