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Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Solid-state NMR as a probe of amyloid fibril structure
1Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892-0520, USA. tycko@helix.nih.gov
Current Opinion in Chemical Biology
|September 28, 2000
Summary
Solid-state Nuclear Magnetic Resonance (NMR) provides detailed structural insights into amyloid fibrils, which are protein aggregates linked to diseases. This technique reveals peptide conformation and beta-sheet organization within these noncrystalline structures.
Area of Science:
- Biophysics
- Biochemistry
- Biomedical Science
Background:
- Amyloid fibrils are insoluble protein aggregates with significant biomedical implications.
- Their noncrystalline nature makes structural analysis challenging using traditional methods.
- Amyloid fibrils are associated with various diseases, including Alzheimer's disease.
Purpose of the Study:
- To highlight the utility of solid-state Nuclear Magnetic Resonance (NMR) for amyloid fibril structural elucidation.
- To discuss the insights gained from previous solid-state NMR studies on amyloid fibrils.
- To anticipate future applications of solid-state NMR in amyloid research.
Main Methods:
- Solid-state NMR spectroscopy is employed to obtain high-resolution structural data.
- The technique provides site-specific constraints, including interatomic distances and torsion angles.
- Analysis focuses on the supramolecular organization of beta-sheets and peptide conformation.
Main Results:
- Solid-state NMR has successfully provided detailed structural information on amyloid fibrils.
- Studies have elucidated the conformation of peptides within fibrils.
- The organization of beta-sheets in fibril structures has been investigated.
Conclusions:
- Solid-state NMR is a powerful technique for studying the structure of amyloid fibrils.
- The method offers unique capabilities for analyzing these complex, noncrystalline aggregates.
- Future research is expected to expand the application of solid-state NMR to diverse amyloid systems.
Related Concept Videos
03:03Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
03:03Amyloid Fibrils
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...