---
_id: '8412'
abstract:
- lang: eng
text: Microsecond to millisecond timescale backbone dynamics of the amyloid core
residues in Y145Stop human prion protein (PrP) fibrils were investigated by using
15N rotating frame (R1ρ) relaxation dispersion solid‐state nuclear magnetic resonance
spectroscopy over a wide range of spin‐lock fields. Numerical simulations enabled
the experimental relaxation dispersion profiles for most of the fibril core residues
to be modelled by using a two‐state exchange process with a common exchange rate
of 1000 s−1, corresponding to protein backbone motion on the timescale of 1 ms,
and an excited‐state population of 2 %. We also found that the relaxation dispersion
profiles for several amino acids positioned near the edges of the most structured
regions of the amyloid core were better modelled by assuming somewhat higher excited‐state
populations (∼5–15 %) and faster exchange rate constants, corresponding to protein
backbone motions on the timescale of ∼100–300 μs. The slow backbone dynamics of
the core residues were evaluated in the context of the structural model of human
Y145Stop PrP amyloid.
article_processing_charge: No
article_type: original
author:
- first_name: Matthew D.
full_name: Shannon, Matthew D.
last_name: Shannon
- first_name: Theint
full_name: Theint, Theint
last_name: Theint
- first_name: Dwaipayan
full_name: Mukhopadhyay, Dwaipayan
last_name: Mukhopadhyay
- first_name: Krystyna
full_name: Surewicz, Krystyna
last_name: Surewicz
- first_name: Witold K.
full_name: Surewicz, Witold K.
last_name: Surewicz
- first_name: Dominique
full_name: Marion, Dominique
last_name: Marion
- first_name: Paul
full_name: Schanda, Paul
id: 7B541462-FAF6-11E9-A490-E8DFE5697425
last_name: Schanda
orcid: 0000-0002-9350-7606
- first_name: Christopher P.
full_name: Jaroniec, Christopher P.
last_name: Jaroniec
citation:
ama: Shannon MD, Theint T, Mukhopadhyay D, et al. Conformational dynamics in the
core of human Y145Stop prion protein amyloid probed by relaxation dispersion NMR.
ChemPhysChem. 2019;20(2):311-317. doi:10.1002/cphc.201800779
apa: Shannon, M. D., Theint, T., Mukhopadhyay, D., Surewicz, K., Surewicz, W. K.,
Marion, D., … Jaroniec, C. P. (2019). Conformational dynamics in the core of human
Y145Stop prion protein amyloid probed by relaxation dispersion NMR. ChemPhysChem.
Wiley. https://doi.org/10.1002/cphc.201800779
chicago: Shannon, Matthew D., Theint Theint, Dwaipayan Mukhopadhyay, Krystyna Surewicz,
Witold K. Surewicz, Dominique Marion, Paul Schanda, and Christopher P. Jaroniec.
“Conformational Dynamics in the Core of Human Y145Stop Prion Protein Amyloid Probed
by Relaxation Dispersion NMR.” ChemPhysChem. Wiley, 2019. https://doi.org/10.1002/cphc.201800779.
ieee: M. D. Shannon et al., “Conformational dynamics in the core of human
Y145Stop prion protein amyloid probed by relaxation dispersion NMR,” ChemPhysChem,
vol. 20, no. 2. Wiley, pp. 311–317, 2019.
ista: Shannon MD, Theint T, Mukhopadhyay D, Surewicz K, Surewicz WK, Marion D, Schanda
P, Jaroniec CP. 2019. Conformational dynamics in the core of human Y145Stop prion
protein amyloid probed by relaxation dispersion NMR. ChemPhysChem. 20(2), 311–317.
mla: Shannon, Matthew D., et al. “Conformational Dynamics in the Core of Human Y145Stop
Prion Protein Amyloid Probed by Relaxation Dispersion NMR.” ChemPhysChem,
vol. 20, no. 2, Wiley, 2019, pp. 311–17, doi:10.1002/cphc.201800779.
short: M.D. Shannon, T. Theint, D. Mukhopadhyay, K. Surewicz, W.K. Surewicz, D.
Marion, P. Schanda, C.P. Jaroniec, ChemPhysChem 20 (2019) 311–317.
date_created: 2020-09-17T10:29:43Z
date_published: 2019-01-21T00:00:00Z
date_updated: 2021-01-12T08:19:06Z
day: '21'
doi: 10.1002/cphc.201800779
extern: '1'
external_id:
pmid:
- '30276945'
intvolume: ' 20'
issue: '2'
keyword:
- Physical and Theoretical Chemistry
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
month: '01'
oa_version: Submitted Version
page: 311-317
pmid: 1
publication: ChemPhysChem
publication_identifier:
issn:
- 1439-4235
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Conformational dynamics in the core of human Y145Stop prion protein amyloid
probed by relaxation dispersion NMR
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 20
year: '2019'
...