Self-assembly of insulin-derived chimeric peptides into two-component amyloid fibrils: the role of Coulombic interactions

M Fortunka, R Dec, W Puławski, M Guza… - The Journal of …, 2023 - ACS Publications
Canonical amyloid fibrils are composed of covalently identical polypeptide chains. Here, we
employ kinetic assays, atomic force microscopy, infrared spectroscopy, circular dichroism …

Forced amyloidogenic cooperativity of structurally incompatible peptide segments: Fibrillization behavior of highly aggregation-prone A-chain fragment of insulin …

R Dec, R Okoń, W Puławski, M Wacławska… - International Journal of …, 2022 - Elsevier
Aggregation of proteins into amyloid fibrils is driven by interactions between relatively small
amyloidogenic segments. The interplay between aggregation-prone and aggregation …

Aliphatic peptides show similar self-assembly to amyloid core sequences, challenging the importance of aromatic interactions in amyloidosis

A Lakshmanan, DW Cheong… - Proceedings of the …, 2013 - National Acad Sciences
The self-assembly of abnormally folded proteins into amyloid fibrils is a hallmark of many
debilitating diseases, from Alzheimer's and Parkinson diseases to prion-related disorders …

Sequence-dependent self-assembly and structural diversity of islet amyloid polypeptide-derived β-sheet fibrils

ST Wang, Y Lin, RK Spencer, MR Thomas, AI Nguyen… - ACS …, 2017 - ACS Publications
Determining the structural origins of amyloid fibrillation is essential for understanding both
the pathology of amyloidosis and the rational design of inhibitors to prevent or reverse …

Guiding the morphology of amyloid assemblies by electrostatic capping: from polymorphic twisted fibrils to uniform nanorods

X Zottig, S Al‐Halifa, M Babych, N Quittot… - Small, 2019 - Wiley Online Library
Peptides that self‐assemble into cross‐β‐sheet amyloid structures constitute promising
building blocks to construct highly ordered proteinaceous materials and nanoparticles …

Distinct oligomerization and fibrillization dynamics of amyloid core sequences of amyloid-beta and islet amyloid polypeptide

Y Sun, B Wang, X Ge, F Ding - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
A direct observation of amyloid aggregation from isolated peptides to cross-β fibrils is crucial
for understanding the nucleation-dependence process, but the corresponding macroscopic …

Helix-dipole effects in peptide self-assembly to amyloid

G Liu, KJ Robbins, S Sparks, V Selmani, KM Bilides… - Biochemistry, 2012 - ACS Publications
The formation of amyloid fibrils is associated with incurable diseases including Alzheimer's,
Parkinson's, and type 2 diabetes. Important mechanistic details of the self-assembly are …

Perturbation of the stability of amyloid fibrils through alteration of electrostatic interactions

SL Shammas, TPJ Knowles, AJ Baldwin… - Biophysical journal, 2011 - cell.com
The self-assembly of proteins and peptides into polymeric amyloid fibrils is a process that
has important implications ranging from the understanding of protein misfolding disorders to …

Amyloid architecture: complementary assembly of heterogeneous combinations of three or four peptides into amyloid fibrils

Y Takahashi, A Ueno, H Mihara - ChemBioChem, 2002 - Wiley Online Library
The amyloid fibril is a misfolded and undesirable state for proteins that has been proposed
to be a causative agent for a variety of fatal diseases known as amyloid diseases, such as …

Amyloid structure: Models and theoretical considerations in fibrous aggregates

DM Morgan, DG Lynn, AS Lakdawala… - Journal of the …, 2002 - Wiley Online Library
In celebration of the many contributions to peptide chemistry from K.‐T. Wang's laboratory,
this manuscript explores the structure of the Aβ (10–35) fibril. This central segment of the Aβ …