Disruption of amyloid-derived peptide assemblies through the controlled induction of a beta-sheet to alpha-helix transformation: application of the switch concept
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Starting from a disordered aggregate, we have simulated the formation of ordered amyloid-like beta structures in a system formed by 18 polyvaline chains in explicit solvent, employing molecular dynamics accelerated by bias-exchange metadynamics. We exploit ...
A screen of a library of synthetic drugs and natural product extracts identified a botanical extract that modulates the processing of amyloid precursor protein (APP) in cultured cells to produce a lowered ratio of amyloid-beta peptide (1-42) (Aβ42) relativ ...
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and Huntington's disease share common mechanisms characterized by protein misfolding and aggregation, including formation of plaques or inclusion bodies. The rapid growing number o ...
The OPEP coarse-grained protein model has been applied to a wide range of applications since its first release 15 years ago. The model, which combines energetic and structural accuracy and chemical specificity, allows the study of single protein properties ...
By extended atomistic simulations in explicit solvent and bias-exchange metadynamics, we study the aggregation process of 18 chains of the C-terminal segment of amyloid-beta, an intrinsically disordered protein involved in Alzheimer's disease and prone to ...
gamma-Secretase is a large enzyme complex comprising presenilin, nicastrin, presenilin enhancer 2, and anterior pharynx-defective 1 that mediates the intramembrane proteolysis of a large number of proteins including amyloid precursor protein and Notch. Rec ...
Biomolecules are the building blocks of living organisms and perform the most important functions in a biological process. The aim of biophysics is to understand the biological functions of biomolecules in terms of their structure: structure and function o ...
The present invention relates to an isolated and/or purified antibody, antibody fragment or derivative thereof able to block the gamma-secretase-dependent processing of the amyloid precursor protein (APP) and to pharmaceutical compositions containing said ...
The distinct conformational dependence of chemical shifts caused by R-helices and β-sheets renders NMR chemical shift analysis a powerful tool for the structural determination of proteins. However, the time scale of NMR experiments can make a secondary str ...
The formation of amyloid β (Aβ) fibrils is crucial in initiating the cascade of pathological events that culminates in Alzheimer's disease. In this study, we investigated the mechanism of Aβ fibril formation from hydrodynamically well defined species under ...