How Amyloid Protofilaments Form from Disordered Aggregates
Author Information
Author(s): Stefan Auer, Filip Meersman, Christopher M. Dobson, Michele Vendruscolo
Primary Institution: Centre for Self Organising Molecular Systems, University of Leeds
Hypothesis
Amyloid formation represents a generic property of polypeptide chains.
Conclusion
The study shows that ordered structures emerge from disordered aggregates due to the interplay of hydrophobic forces and hydrogen bonding.
Supporting Evidence
- The presence of oligomeric aggregates is linked to neurodegenerative diseases.
- Ordered structures emerge from disordered aggregates due to hydrophobic and hydrogen bonding interactions.
- The study provides molecular details of a sequence-independent mechanism for amyloid formation.
Takeaway
Proteins can clump together in a messy way before forming organized structures, which is important for understanding diseases like Alzheimer's.
Methodology
The study used computer simulations to analyze the condensation of polypeptide chains into oligomeric assemblies and their reorganization into fibrillar structures.
Limitations
The model does not account for specific sequence or structural properties of proteins.
Digital Object Identifier (DOI)
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