ArticleBiophysical journal2020
Thermodynamics of Huntingtin Aggregation.
Article in Biophysical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Thermodynamic Frontiers in Hemoglobin-Inspired Polymer Science for Diagnosis and Modulation of Neurodegenerative Diseases.Cell biochemistry and function · 2026Review
- Multiscale Simulations Elucidate the Mechanism of Polyglutamine Aggregation and the Role of Flanking Domains in Fibril Polymorphism.The journal of physical chemistry. B · 2025Article
- A Coarse-Grained MD Model for Disorder-To-Order Transitions in PolyQ Aggregation.Journal of chemical theory and computation · 2025Article
- Transient Interdomain Interactions Modulate the Monomeric Structural Ensemble and Self-Assembly of Huntingtin Exon 1.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Multiscale simulations elucidate the mechanism of polyglutamine aggregation and the role of flanking domains in fibril polymorphism.bioRxiv : the preprint server for biology · 2025Article
- Integrative determination of atomic structure of mutant huntingtin exon 1 fibrils implicated in Huntington disease.Nature communications · 2024Article
- Integrative determination of the atomic structure of mutant huntingtin exon 1 fibrils implicated in Huntington's disease.bioRxiv : the preprint server for biology · 2024Article
- Article
- Beneficial and detrimental effects of non-specific binding during DNA hybridization.Biophysical journal · 2023Article
- The Protein Folding Problem: The Role of Theory.Journal of molecular biology · 2021Review
- How Hierarchical Interactions Make Membraneless Organelles Tick Like Clockwork.Trends in biochemical sciences · 2021Review
- An Expanded Polyproline Domain Maintains Mutant Huntingtin SolubleFrontiers in molecular neuroscience · 2021Article
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Authors and funding
2 authors.
Funding
Abstract
Amyloid aggregates are found in many neurodegenerative diseases, including Huntington's, Alzheimer's, and prion diseases. The precise role of the aggregates in disease progression has been difficult to elucidate because of the diversity of aggregated states they can adopt. Here, we study the formation of fibrils and oligomers by exon 1 of huntingtin protein. We show that the oligomer states are consistent with polymer micelles that are limited in size by the stretching entropy of the polyglutamine region. The model shows how the sequences flanking the amyloid core modulate aggregation behavior. The N17 region promotes aggregation through weakly attractive interactions, whereas the C38 tail opposes aggregation via steric repulsion. We also show that the energetics of cross-β stacking by polyglutamine would produce fibrils with many alignment defects, but minor perturbations from the flanking sequences are sufficient to reduce the defects to the level observed in experiment. We conclude with a discussion of the implications of this model for other amyloid-forming molecules.
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