Alzheimer's amyloid fibrils: structure and assembly

Serpell, Louise (2000) Alzheimer's amyloid fibrils: structure and assembly. BBA - Molecular Basis of Disease, 1502 (1). pp. 16-30. ISSN 0925-4439

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Structural studies of Alzheimer's amyloid fibrils have revealed information about the structure at different levels. The amyloid-ß peptide has been examined in various solvents and conditions and this has led to a model by which a conformational switching occurs from a-helix or random coil, to a ß-sheet structure. Amyloid fibril assembly proceeds by a nucleation dependent pathway leading to elongation of the fibrils. Along this pathway small oligomeric intermediates and short fibrillar structures (protofibrils) have been observed. In cross-section the fibril appears to be composed of several subfibrils or protofilaments. Each of these protofilaments is composed of ß-sheet structure in which hydrogen bonding occurs along the length of the fibre and the ß-strands run perpendicular to the fibre axis. This hierarchy of structure is discussed in this review.

Item Type: Article
Schools and Departments: School of Life Sciences > Biochemistry
Depositing User: Louise Serpell
Date Deposited: 06 Feb 2012 20:19
Last Modified: 16 Jul 2012 14:56
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