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Biophys J. 2012 Dec 19;103(12):L47-9. doi: 10.1016/j.bpj.2012.11.009. Epub 2012 Dec 18.

Effects of familial mutations on the monomer structure of Aβ₄₂.

Abstract

Amyloid beta (Aβ) peptide plays an important role in Alzheimer's disease. A number of mutations in the Aβ sequence lead to familial Alzheimer's disease, congophilic amyloid angiopathy, or hereditary cerebral hemorrhage with amyloid. Using molecular dynamics simulations of ∼200 μs for each system, we characterize and contrast the consequences of four pathogenic mutations (Italian, Dutch, Arctic, and Iowa) for the structural ensemble of the Aβ monomer. The four familial mutations are found to have distinct consequences for the monomer structure.

PMID:
23260058
PMCID:
PMC3525840
DOI:
10.1016/j.bpj.2012.11.009
[Indexed for MEDLINE]
Free PMC Article

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