G-quadruplex structure of an anti-proliferative DNA sequence
نویسندگان
چکیده
منابع مشابه
G-quadruplex structure of an anti-proliferative DNA sequence
AGRO100 (also known as AS1411) is a G-rich oligonucleotide that has long been established as a potent anti-cancer aptamer. However, the structure of AGRO100 remained unresolved, due to the co-existence of multiple different G-quadruplex conformations. We identified a DNA sequence named AT11, derived from AGRO100, which formed a single major G-quadruplex conformation and exhibited a similar anti...
متن کاملQuadruplex DNA: sequence, topology and structure
G-quadruplexes are higher-order DNA and RNA structures formed from G-rich sequences that are built around tetrads of hydrogen-bonded guanine bases. Potential quadruplex sequences have been identified in G-rich eukaryotic telomeres, and more recently in non-telomeric genomic DNA, e.g. in nuclease-hypersensitive promoter regions. The natural role and biological validation of these structures is s...
متن کاملStructure of a left-handed DNA G-quadruplex.
Aside from the well-known double helix, DNA can also adopt an alternative four-stranded structure known as G-quadruplex. Implications of such a structure in cellular processes, as well as its therapeutic and diagnostic applications, have been reported. The G-quadruplex structure is highly polymorphic, but so far, only right-handed helical forms have been observed. Here we present the NMR soluti...
متن کاملSURVEY AND SUMMARY Quadruplex DNA: sequence, topology and structure
G-quadruplexes are higher-order DNA and RNA structures formed from G-rich sequences that are built around tetrads of hydrogen-bonded guanine bases. Potential quadruplex sequences have been identified in G-rich eukaryotic telomeres, and more recently in non-telomeric genomic DNA, e.g. in nuclease-hypersensitive promoter regions. The natural role and biological validation of these structures is s...
متن کاملRHPS4 G-Quadruplex Ligand Induces Anti-Proliferative Effects in Brain Tumor Cells
BACKGROUND Telomeric 3' overhangs can fold into a four-stranded DNA structure termed G-quadruplex (G4), a formation which inhibits telomerase. As telomerase activation is crucial for telomere maintenance in most cancer cells, several classes of G4 ligands have been designed to directly disrupt telomeric structure. METHODS We exposed brain tumor cells to the G4 ligand 3,11-difluoro-6,8,13-trim...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 2017
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/gkx274