Abstract
Gangliosides are targets for a variety of pathologically relevant proteins, including amyloid β (Aβ), an important component implicated in Alzheimer’s disease (AD). To provide a structural basis for this pathogenic interaction associated with AD, we conducted NMR analyses of the Aβ interactions with gangliosides using lyso-GM1 micelles as a model system. Our NMR data revealed that the sugar–lipid interface is primarily perturbed upon binding of Aβ to the micelles, underscoring the importance of the inner part of the ganglioside cluster for accommodating Aβ in comparison with the outer carbohydrate branches that provide microbial toxin- and virus-binding sites.
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