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Methods Enzymol. 2006;413:103-22.

Characterization of amyloid structures at the molecular level by solid state nuclear magnetic resonance spectroscopy.

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  • 1National Institutes of Health, Laboratory of Chemical Physics, NIDDK, Bethesda, Maryland, USA.


Solid state nuclear magnetic resonance (NMR) spectroscopy is particularly useful in structural studies of amyloid fibrils because solid state NMR techniques have unique capabilities as site-specific, molecular-level structural probes of noncrystalline materials. These techniques provide experimental data that strongly constrain the secondary, tertiary, and quaternary structures of amyloid fibrils, permitting the development of experimentally based structural models. Examples of techniques that are applicable to amyloid samples prepared with isotopic labeling of specific sites and to samples prepared with uniform isotopic labeling of selected residues are presented, illustrating the utility of the various techniques and labeling schemes. Information regarding the preparation of amyloid samples for solid state NMR measurements is also included.

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