Mechanistic insight into E22Q-mutation-induced antiparallel-to-parallel β-sheet transition of Aβ 16− 22 fibrils: an all-atom simulation study

X Li, J Lei, R Qi, L Xie, G Wei - Physical Chemistry Chemical Physics, 2019 - pubs.rsc.org
Alzheimer's disease is associated with the abnormal self-assembly of amyloid-β (Aβ)
peptide into toxic oligomers and fibrils. Recent experiments reported that Aβ16− 22 …

[HTML][HTML] Structure of ring-shaped Aβ42 oligomers determined by conformational selection

L Tran, N Basdevant, C Prévost, T Ha-Duong - Scientific reports, 2016 - nature.com
The oligomerization of amyloid beta (Aβ) peptides into soluble non-fibrillar species plays a
critical role in the pathogenesis of Alzheimer's disease. However, it has been challenging to …

Effect of the English familial disease mutation (H6R) on the monomers and dimers of Aβ40 and Aβ42

MH Viet, PH Nguyen, P Derreumaux… - ACS chemical …, 2014 - ACS Publications
The self-assembly of the amyloid beta (Aβ) peptides into senile plaques is the hallmark of
Alzheimer's disease. Recent experiments have shown that the English familial disease …

[HTML][HTML] Unfolding of the amyloid β-peptide central helix: mechanistic insights from molecular dynamics simulations

M Ito, J Johansson, R Strömberg, L Nilsson - PloS one, 2011 - journals.plos.org
Alzheimer's disease (AD) pathogenesis is associated with formation of amyloid fibrils
caused by polymerization of the amyloid β-peptide (Aβ), which is a process that requires …

Aβ (16–22) peptides can assemble into ordered β-barrels and bilayer β-sheets, while substitution of phenylalanine 19 by tryptophan increases the population of …

L Xie, Y Luo, G Wei - The Journal of Physical Chemistry B, 2013 - ACS Publications
A recent experimental study reported that termini-uncapped Aβ (16–22)(with sequence
KLVFFAE) peptides self-assembled into nanofibrils at pH 2.0. The oligomerization of this …

Effect of familial mutations on the interconversion of α-Helix to β-sheet structures in an amyloid-forming peptide: insight from umbrella sampling simulations

SK Mudedla, NA Murugan, H Ågren - ACS Chemical …, 2018 - ACS Publications
Understanding the initial events of aggregation of amyloid β monomers to form β-sheet rich
fibrils is useful for the development of therapeutics for Alzheimer's disease. In this context …

Insights into the baicalein-induced destabilization of LS-shaped Aβ 42 protofibrils using computer simulations

G Kaur, OK Mankoo, A Kaur, D Goyal… - Physical Chemistry …, 2024 - pubs.rsc.org
Amyloid-β (Aβ) peptides aggregate spontaneously into various aggregating species
comprising oligomers, protofibrils, and mature fibrils in Alzheimer's disease (AD). Disrupting …

The conformational stability of nonfibrillar amyloid-β peptide oligomers critically depends on the C-terminal peptide length

E Socher, H Sticht, AHC Horn - ACS chemical neuroscience, 2014 - ACS Publications
The amyloid-β (Aβ) peptide is one key molecule in the pathogenesis of Alzheimer's disease.
We investigated the conformational stability of a nonfibrillar tetrameric Aβ structure by …

Molecular mechanism of misfolding and aggregation of Aβ (13–23)

S Lovas, Y Zhang, J Yu… - The journal of physical …, 2013 - ACS Publications
The misfolding and self-assembly of the amyloid-beta (Aβ) peptide into aggregates is a
molecular signature of the development of Alzheimer's disease, but molecular mechanisms …

Zn2+ Binding Increases Parallel Structure in the Aβ(16–22) Oligomer by Disrupting Salt Bridge in Antiparallel Structure

Y Song, M Wu, C Wang, H Fang… - The Journal of Physical …, 2024 - ACS Publications
The aggregation of monomeric amyloid β protein (Aβ) into oligomers and amyloid plaque in
the brain is associated with Alzheimer's disease. The hydrophobic central core Aβ16–22 has …