G-Quadruplex Nucleic Acids
نویسندگان
چکیده
1 IRB Barcelona, IQAC-CSIC, Jordi Girona 16-26, 08034 Barcelona, Spain 2 2 INSERM U869, Laboratoire ARNA, Université de Bordeaux 2, Institut Européen de Chimie-Biologie, 2 rue Robert Escarpit, 33607 Pessac Cedex, France 3Dipartimento di Chimica Organica e Biochimica, Università degli Studi di Napoli “Federico II”, I-80126 Naples, Italy 4 Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, SI-2000 Maribor, Ljubljana, Slovenia 5Department of Complex Matter, J. Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia 6Faculty of Life and Health Sciences, University of Ulster, Cromore Road, Coleraine, BT52 1SA, Northern Ireland
منابع مشابه
Biological Function of G-Quadruplex Nucleic Acids and Potential Application in Medicinal Chemistry.
G-Quadruplexes are special secondary structures adopted in some guanine-rich DNA sequences. The highly prevalent putative existence of G-quadruplex and the influence on genomic stability, telomere maintenance and gene expression indicate that G-quadruplexes may play important roles in biological processes [1]. Many research findings have provided substantive evidence for potential applications ...
متن کاملEnhanced anti-HIV-1 activity of G-quadruplexes comprising locked nucleic acids and intercalating nucleic acids
Two G-quadruplex forming sequences, 5'-TGGGAG and the 17-mer sequence T30177, which exhibit anti-HIV-1 activity on cell lines, were modified using either locked nucleic acids (LNA) or via insertions of (R)-1-O-(pyren-1-ylmethyl)glycerol (intercalating nucleic acid, INA) or (R)-1-O-[4-(1-pyrenylethynyl)phenylmethyl]glycerol (twisted intercalating nucleic acid, TINA). Incorporation of LNA or INA/...
متن کاملOrganelle-mimicking liposome dissociates G-quadruplexes and facilitates transcription
Important biological reactions involving nucleic acids occur near the surface of membranes such as the nuclear membrane (NM) and rough endoplasmic reticulum (ER); however, the interactions between biomembranes and nucleic acids are poorly understood. We report here that transcription was facilitated in solution with liposomes, which mimic a biomembrane surface, relative to the reaction in a hom...
متن کاملStabilization of G-quadruplex in the BCL2 promoter region in double-stranded DNA by invading short PNAs
Numerous regulatory genes have G-rich regions that can potentially form quadruplex structures, possibly playing a role in transcription regulation. We studied a G-rich sequence in the BCL2 gene 176-bp upstream of the P1 promoter for G-quadruplex formation. Using circular dichroism (CD), thermal denaturation and dimethyl sulfate (DMS) footprinting, we found that a single-stranded oligonucleotide...
متن کاملKinetic resolution of bimolecular hybridization versus intramolecular folding in nucleic acids by surface plasmon resonance: application to G-quadruplex/duplex competition in human c-myc promoter
The human oncogene c-myc is regulated by G-quadruplex formation within the nuclease hypersensitive element (NHE III(I)) in the c-myc promoter, making the quadruplex a strong anti-cancer target. With respect to this, the competing equilibrium between intramolecular quadruplex folding and bimolecular duplex formation is poorly understood and very few techniques have addressed this problem. We pre...
متن کاملG-quadruplex recognition by macrocyclic hexaoxazole (6OTD) dimer.
Telomestatin (TMS: 1) is as a potent and selective telomeric G-quadruplex binder. Two molecules of TMS were suggested to be intercalated to one telomeric G-quadruplex according to docking study. In this paper, we designed and synthesized hexaoxazole TMS derivative (6OTD) dimer, and evaluated its G-quadruplex stabilizing ability.
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عنوان ژورنال:
دوره 2010 شماره
صفحات -
تاریخ انتشار 2010