A glycine zipper motif mediates the formation of toxic β-amyloid oligomers in vitro and in vivo

Abstract excerpt

BACKGROUND: The β-amyloid peptide (Aβ) contains a Gly-XXX-Gly-XXX-Gly motif in its C-terminal region that has been proposed to form a "glycine zipper" that drives the formation of toxic Aβ oligomers. We have tested this hypothesis by examining the toxicity of Aβ variants containing substitutions in this motif using a neuronal cell line, primary neurons, and a transgenic C. elegans model. RESULTS: We found that a...

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