ArticleBiochemistry2015
Solid-State Nuclear Magnetic Resonance on the Static and Dynamic Domains of Huntingtin Exon-1 Fibrils.
Article in Biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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Who cites it
47 citing papers in PubMed, 80 citations in OpenAlex.
- Progressively reduced cerebral oxygen metabolism and elevated plasma NfL levels in the zQ175DN mouse model of Huntington's disease.Experimental neurology · 2025Article
- Pathogenic Proteins Through the Lens of NMR Spectroscopy: Structural and Functional Insights into Disease.Cell biochemistry and biophysics · 2025Review
- Kinetic Mechanism of Substoichiometric Inhibition of Huntingtin Exon-1 Protein Aggregation by Selenium Nanoparticles.Small science · 2025Article
- Multiscale Simulations Elucidate the Mechanism of Polyglutamine Aggregation and the Role of Flanking Domains in Fibril Polymorphism.The journal of physical chemistry. B · 2025Article
- Probing How Anti-huntingtin Antibodies Bind the Fibrillar Fuzzy Coat Using Solid-State NMR.Chemistry (Weinheim an der Bergstrasse, 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
- Inhibitor-based modulation of huntingtin aggregation mechanisms mitigates fibril-induced cellular stress.Nature communications · 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
- Nucleation of Huntingtin Aggregation Proceeds via Conformational Conversion of Pre-Formed, Sparsely-Populated Tetramers.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Solid-state nuclear magnetic resonance in the structural study of polyglutamine aggregation.Biochemical Society transactions · 2024Review
- Fluorescent protein tagging promotes phase separation and alters the aggregation pathway of huntingtin exon-1.The Journal of biological chemistry · 2024Article
- Early detection of exon 1 huntingtin aggregation in zQ175 brains by molecular and histological approaches.Brain communications · 2023Article
- Comparative molecular dynamics simulations of pathogenic and non-pathogenic huntingtin protein monomers and dimers.Frontiers in molecular biosciences · 2023Article
- Identification of a HTT-specific binding motif in DNAJB1 essential for suppression and disaggregation of HTT.Nature communications · 2022Article
- What makes functional amyloids work?Critical reviews in biochemistry and molecular biology · 2022Review
- Quantitative NMR analysis of the kinetics of prenucleation oligomerization and aggregation of pathogenic huntingtin exon-1 protein.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- NMR spectroscopy, excited states and relevance to problems in cell biology - transient pre-nucleation tetramerization of huntingtin and insights into Huntington's disease.Journal of cell science · 2022Article
- Selective observation of semi-rigid non-core residues in dynamically complex mutant huntingtin protein fibrils.Journal of structural biology: X · 2022Article
- Influence of the Dynamically Disordered N-Terminal Tail Domain on the Amyloid Core Structure of Human Y145Stop Prion Protein Fibrils.Frontiers in molecular biosciences · 2022Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Amyloid-like fibrils formed by huntingtin exon-1 (htt_ex1) are a hallmark of Huntington's disease (HD). The structure of these fibrils is unknown, and determining their structure is an important step toward understanding the misfolding processes that cause HD. In HD, a polyglutamine (polyQ) domain in htt_ex1 is expanded to a degree that it gains the ability to form aggregates comprising the core of the resulting fibrils. Despite the simplicity of this polyQ sequence, the structure of htt_ex1 fibrils has been difficult to determine. This study provides a detailed structural investigation of fibrils formed by htt_ex1 using solid-state nuclear magnetic resonance (NMR) spectroscopy. We show that the polyQ domain of htt_ex1 forms the static amyloid core similar to polyQ model peptides. The Gln residues of this domain exist in two distinct conformations that are found in separate domains or monomers but are relatively close in space. The rest of htt_ex1 is relatively dynamic on an NMR time scale, especially the proline-rich C-terminus, which we found to be in a polyproline II helical and random coil conformation. We observed a similar dynamic C-terminus in a soluble form of htt_ex1, indicating that the conformation of this part of htt_ex1 is not changed upon its aggregation into an amyloid fibril. From these data, we propose a bottlebrush model for the fibrils formed by htt_ex1. In this model, the polyQ domains form the center and the proline-rich domains the bristles of the bottlebrush.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.