Peptide backbone modification in the bend region of amyloid-β inhibits fibrillogenesis but not oligomer formation.

Abstract excerpt

Current evidence suggests that oligomers of the amyloid-β (Aβ) peptide are involved in the cellular toxicity of Alzheimer's disease, yet their biophysical characterization remains difficult because of lack of experimental control over the aggregation process under relevant physiologic conditions. Here, we show that modification of the Aβ peptide backbone at Gly29 allows for the formation of oligomers but inhibits...

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