Journal
NEUROBIOLOGY OF AGING
Volume 25, Issue 5, Pages 569-580Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2004.02.010
Keywords
ADDLs; Alzheimer's disease; amyloid; amyloid beta-protein; oligomers; paranucleus; prototibril; neurotoxicity
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Funding
- NIA NIH HHS [AG11385, AG022547, AG13854, AG18877, AG18921, AG19121, AG021184] Funding Source: Medline
- NINDS NIH HHS [NS44147, NS38328] Funding Source: Medline
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Pioneering work in the 1950s by Christian Anfinsen on the folding of ribonuclease has shown that the primary structure of a protein encodes all of the information necessary for a nascent polypeptide to fold into its native, physiologically active, three-dimensional conformation (for his classic review, see [Science 181 (1973) 223]). In Alzheimer's disease (AD), the amyloid beta-protein (Abeta) appears to play a seminal role in neuronal injury and death. Recent data have suggested that the proximate effectors of neurotoxicity are oligomeric Abeta assemblies. A fundamental question, of relevance both to the development of therapeutic strategies for AD and to understanding basic laws of protein folding, is how Abeta assembly state correlates with biological activity. Evidence suggests, as argued by Anfinsen, that the formation of toxic Abeta structures is an intrinsic feature of the peptide's amino acid sequence-one requiring no post-translational modification or invocation of peptide-associated enzymatic activity. (C) 2004 Elsevier Inc. All rights reserved.
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