ArticleNucleic acids research2018
NMR structure of a G-quadruplex formed by four d(G4C2) repeats: insights into structural polymorphism.
Article in Nucleic acids research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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Who cites it
39 citing papers in PubMed, 55 citations in OpenAlex.
- The role of FMR1 mRNA structure on the efficiency of non-canonical translation of toxic polyglycine protein.Nucleic acids research · 2026Article
- Large-Scale Conformational Analysis Explains G-Quadruplex Topological Landscape.The journal of physical chemistry. B · 2025Article
- Crystal structures of distinct parallel and antiparallel DNA G-quadruplexes reveal structural polymorphism in C9orf72 G4C2 repeats.Nucleic acids research · 2025Article
- Structural basis of G-quadruplex recognition by a camelid antibody fragment.Nucleic acids research · 2025Article
- Unraveling the Molecular Basis for G-Quadruplex-Binders to ALS/FTD-Associated G4C2 Repeats of the C9orf72 Gene.Chembiochem : a European journal of chemical biology · 2025Article
- Structural Insights into an Antiparallel Chair-Type G-Quadruplex From the Intron of NOP56 Oncogene.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- G-Quadruplex Structures Formed by Human Telomere andInternational journal of molecular sciences · 2025Review
- Nanostructural Modulation of G-Quadruplex DNA in Neurodegeneration: Orotate Interaction Revealed Through Experimental and Computational Approaches.Journal of neurochemistry · 2025Article
- Crystal structure of a tetrameric RNA G-quadruplex formed by hexanucleotide repeat expansions of C9orf72 in ALS/FTD.Nucleic acids research · 2024Article
- Dimeric structures of DNA ATTTC repeats promoted by divalent cations.Nucleic acids research · 2024Article
- Role of C9orf72 hexanucleotide repeat expansions in ALS/FTD pathogenesis.Frontiers in molecular neuroscience · 2024Review
- Article
- Insight into Tetramolecular DNA G-Quadruplexes Associated with ALS and FTLD: Cation Interactions and Formation of Higher-Ordered Structure.International journal of molecular sciences · 2023Article
- Advances in the Structure of GGGGCC Repeat RNA Sequence and Its Interaction with Small Molecules and Protein Partners.Molecules (Basel, Switzerland) · 2023Review
- Development of MnInternational journal of molecular sciences · 2023Article
- G-quadruplex formation at humanBiochemistry and biophysics reports · 2023Article
- G-Quadruplexes Formation by theMolecules (Basel, Switzerland) · 2023Article
- Stability of Human Telomeric G-Quadruplexes Complexed with Photosensitive Ligands and Irradiated with Visible Light.International journal of molecular sciences · 2023Article
- Hidden Information Revealed Using the Orthogonal System of Nucleic Acids.International journal of molecular sciences · 2022Article
- Two coexisting pseudo-mirror heteromolecular telomeric G-quadruplexes in opposite loop progressions differentially recognized by a low equivalent of Thioflavin T.Nucleic acids research · 2021Article
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Most frequent genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), is a largely increased number of d(G4C2)n•(G2C4)n repeats located in the non-coding region of C9orf72 gene. Non-canonical structures, including G-quadruplexes, formed within expanded repeats have been proposed to drive repeat expansion and pathogenesis of ALS and FTD. Oligonucleotide d[(G4C2)3G4], which represents the shortest oligonucleotide model of d(G4C2) repeats with the ability to form a unimolecular G-quadruplex, forms two major G-quadruplex structures in addition to several minor species which coexist in solution with K+ ions. Herein, we used solution-state NMR to determine the high-resolution structure of one of the major G-quadruplex species adopted by d[(G4C2)3G4]. Structural characterization of the G-quadruplex named AQU was facilitated by a single substitution of dG with 8Br-dG at position 21 and revealed an antiparallel fold composed of four G-quartets and three lateral C-C loops. The G-quadruplex exhibits high thermal stability and is favored kinetically and under slightly acidic conditions. An unusual structural element distinct from a C-quartet is observed in the structure. Two C•C base pairs are stacked on the nearby G-quartet and are involved in a dynamic equilibrium between symmetric N3-amino and carbonyl-amino geometries and protonated C+•C state.
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