ArticleProceedings of the National Academy of Sciences of the United States of America2012
Antiparallel β-sheet architecture in Iowa-mutant β-amyloid fibrils.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 185 papers.
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Who cites it
185 citing papers in PubMed, 355 citations in OpenAlex.
- Structural Hierarchy and Maturation of Amyloid Fibrils Revealed by Interface Descriptor Analysis.Journal of chemical information and modeling · 2026Article
- SEC Purified Monomeric Aβ42 Produces Reproducible and Reliable Aggregation Measurements.bioRxiv : the preprint server for biology · 2026Article
- From Disordered to Ordered: Nanoscale Spectroscopy Reveals Structural Evolution of Amyloid Beta 40 Fibrils.Chemphyschem : a European journal of chemical physics and physical chemistry · 2026Article
- The concentric β-barrel hypothesis for amyloids: Models of soluble and transmembrane amyloid-β42 oligomers and channels composed of identical subunits and GM1 gangliosides.bioRxiv : the preprint server for biology · 2026Article
- Higher Magnetic Field NMR Renders Resolution Enhancement on Ganglioside GD3 Catalyzed AβbioRxiv : the preprint server for biology · 2026Article
- Time-resolved solid-state nuclear magnetic resonance studies of amyloid-β oligomer formation.Methods in enzymology · 2026Review
- Single-fibril Förster resonance energy transfer imaging and deep learning reveal concentration dependence of amyloid β 42 aggregation pathways.PNAS nexus · 2025Article
- Small-Molecule Inhibitors of Amyloid Beta: Insights from Molecular Dynamics-Part B: Natural Compounds.Pharmaceuticals (Basel, Switzerland) · 2025Review
- Chameleonic Nature of Aβ: Implications for Alzheimer's and Other Amyloid Diseases.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025Review
- Microgravity-Assisted Exploration of the Conformational Space of Amyloid β Affected by Tottori-Type Familial Mutation D7N.ACS chemical neuroscience · 2025Article
- Lipid mediated formation of antiparallel aggregates in cerebral amyloid angiopathy.Acta neuropathologica · 2025Article
- Inhibitory mechanisms of amentoflavone on amyloid-β peptide aggregation revealed by replica exchange molecular dynamics.Scientific reports · 2025Article
- Structural convergence and membrane interactions of AβCommunications chemistry · 2025Article
- Inducers and modulators of protein aggregation in Alzheimer's disease - Critical tools for understanding the foundations of aggregate structures.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Review
- Small-Molecule Inhibitors of Amyloid Beta: Insights from Molecular Dynamics-Part A: Endogenous Compounds and Repurposed Drugs.Pharmaceuticals (Basel, Switzerland) · 2025Review
- Membrane-assisted Aβ40 aggregation pathways.Cell reports. Physical science · 2025Article
- Aggregation dynamics of a 150 kDa Aβ42 oligomer: Insights from cryo electron microscopy and multimodal analysis.Computational and structural biotechnology journal · 2024Article
- Nitroxyl Hybrids with Curcumin and Stilbene Scaffolds Display Potent Antioxidant Activity, Remodel the Amyloid Beta Oligomer, and Reverse Amyloid Beta-Induced Cytotoxicity.Antioxidants (Basel, Switzerland) · 2024Article
- Cryo-EM and solid state NMR together provide a more comprehensive structural investigation of protein fibrils.Protein science : a publication of the Protein Society · 2024Article
- Production of Distinct Fibrillar, Oligomeric, and Other Aggregation States from Network Models of Multibody Interaction.Journal of chemical theory and computation · 2024Article
125 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Wild-type, full-length (40- and 42-residue) amyloid β-peptide (Aβ) fibrils have been shown by a variety of magnetic resonance techniques to contain cross-β structures in which the β-sheets have an in-register parallel supramolecular organization. In contrast, recent studies of fibrils formed in vitro by the Asp23-to-Asn mutant of 40-residue Aβ (D23N-Aβ(1-40)), which is associated with early onset neurodegeneration, indicate that D23N-Aβ(1-40) fibrils can contain either parallel or antiparallel β-sheets. We report a protocol for producing structurally pure antiparallel D23N-Aβ(1-40) fibril samples and a series of solid state nuclear magnetic resonance and electron microscopy measurements that lead to a specific model for the antiparallel D23N-Aβ(1-40) fibril structure. This model reveals how both parallel and antiparallel cross-β structures can be constructed from similar peptide monomer conformations and stabilized by similar sets of interactions, primarily hydrophobic in nature. We find that antiparallel D23N-Aβ(1-40) fibrils are thermodynamically metastable with respect to conversion to parallel structures, propagate less efficiently than parallel fibrils in seeded fibril growth, and therefore must nucleate more efficiently than parallel fibrils in order to be observable. Experiments in neuronal cell cultures indicate that both antiparallel and parallel D23N-Aβ(1-40) fibrils are cytotoxic. Thus, our antiparallel D23N-Aβ(1-40) fibril model represents a specific "toxic intermediate" in the aggregation process of a disease-associated Aβ mutant.
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Registered trials
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.