Structure and aggregation mechanisms in amyloids

ZL Almeida, RMM Brito - Molecules, 2020 - mdpi.com
The aggregation of a polypeptide chain into amyloid fibrils and their accumulation and
deposition into insoluble plaques and intracellular inclusions is the hallmark of several …

Protofibrils of amyloid-β are important targets of a disease-modifying approach for Alzheimer's disease

K Ono, M Tsuji - International journal of molecular sciences, 2020 - mdpi.com
Worldwide, Alzheimer's disease (AD) is the most common age-related neurodegenerative
disease and is characterized by unique pathological hallmarks in the brain, including …

High-speed atomic force microscopy reveals the structural dynamics of the amyloid-β and amylin aggregation pathways

T Watanabe-Nakayama, BR Sahoo… - International journal of …, 2020 - mdpi.com
Individual Alzheimer's disease (AD) patients have been shown to have structurally distinct
amyloid-β (Aβ) aggregates, including fibrils, in their brain. These findings suggest the …

MIRRAGGE–minimum information required for reproducible AGGregation experiments

PM Martins, S Navarro, A Silva, MF Pinto… - Frontiers in molecular …, 2020 - frontiersin.org
Reports on phase separation and amyloid formation for multiple proteins and aggregation-
prone peptides are recurrently used to explore the molecular mechanisms associated with …

Inhibitor and substrate cooperate to inhibit amyloid fibril elongation of α-synuclein

ED Agerschou, V Borgmann, MM Wördehoff… - Chemical …, 2020 - pubs.rsc.org
In amyloid fibril elongation, soluble growth substrate binds to the fibril-end and converts into
the fibril conformation. This process is targeted by inhibitors that block fibril-ends. Here, we …

Time-resolved observation of evolution of amyloid-β oligomer with temporary salt crystals

K Nakajima, T Yamazaki, Y Kimura, M So… - The Journal of …, 2020 - ACS Publications
The aggregation behavior of amyloid-β (Aβ) peptides remains unclarified despite the fact
that it is closely related to the pathogenic mechanism of Alzheimer's disease. Aβ peptides …

Network Hamiltonian models reveal pathways to amyloid fibril formation

Y Yu, G Grazioli, MH Unhelkar, RW Martin, CT Butts - Scientific reports, 2020 - nature.com
Amyloid fibril formation is central to the etiology of a wide range of serious human diseases,
such as Alzheimer's disease and prion diseases. Despite an ever growing collection of …

Enhanced self-assembly of the 7–12 sequence of amyloid-β peptide by tyrosine bromination

D Maiolo, A Pizzi, A Gori, G Bergamaschi… - Supramolecular …, 2020 - Taylor & Francis
Alzheimer's disease (AD) is a serious neuropathology related to the misfolded assembly
state of amyloid-beta (Aβ40 and Aβ42) peptides. It has been demonstrated that protein post …

Halogenation of the N‐Terminus Tyrosine 10 Promotes Supramolecular Stabilization of the Amyloid‐β Sequence 7–12

D Maiolo, A Pizzi, A Gori, L Gazzera, N Demitri… - …, 2020 - Wiley Online Library
Here, we demonstrate that introduction of halogen atoms at the tyrosine 10 phenol ring of
the DSGYEV sequence derived from the flexible amyloid‐β N‐terminus, promotes its self …

Molecular mechanisms of amyloid aggregation in human proteinopathies

B Morel, F Conejero-Lara - Protein Homeostasis Diseases, 2020 - Elsevier
An increasing number of human disorders has been identified as associated to or directly
caused by aberrant protein aggregation and especially amyloid fibril formation. In this …