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Amyloid as a natural product.
Jeffery W Kelly1, William E Balch
1Department of Chemistry and The Skaggs Institute of Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, CA 92037, USA. jkelly@scripps.edu
The Journal of Cell Biology
|May 14, 2003
Summary
Amyloid fibrils form naturally through biological processing, not just disease. This conserved pathway creates nanostructures, seen in melanin production and bacterial processes.
Area of Science:
- Biochemistry
- Cell Biology
- Structural Biology
Background:
- Amyloid fibrils are linked to neurodegenerative diseases like Alzheimer's, arising from misassembled peptides.
- Peptide misassembly can stem from normal or aberrant intracellular proteolytic processing.
Discussion:
- Marks et al. show intra-melanosome fibrils form via normal proteolytic processing of an integral membrane protein.
- The resulting peptide fragment self-assembles into fibrils, aiding melanin pigment granule formation.
Key Insights:
- Fibril formation is a biologically conserved pathway, not solely a pathological process.
- This pathway is utilized for generating natural product nanostructures.
Outlook:
- Further research into this conserved fibril formation pathway could reveal new therapeutic targets.
- Understanding natural nanostructure formation may inspire novel biomaterials design.