An amyloid-like fibril-forming supramolecular cross-β-structure of a model peptide: a crystallographic insight
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Updated: Jun 3, 2026

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Sibaprasad Maity1, Pankaj Kumar, Debasish Haldar
1Department of Chemical Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur, Nadia, West Bengal, India.
Abstract:
The peptide Boc-Val-Phe-OMe 1 bearing sequence similarity with the central hydrophobic cluster (CHC) of Alzheimer's Aβ(18-19) peptide self-assembles to produce amyloid-like straight unbranched fibrils as examined by atomic force microscopy and Congo red assay. Single crystal X-ray diffraction offers the atomic level structure of the supramolecular parallel β-sheet aggregation and antiparallel separation between layers (cross-β-structure).
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